fix Swift4.0.2 characters warnings

[upoahz]

Checklist

• New Extension
• New Test
• Changed more than one extension, but all changes are related
• Trivial change (doesn't require changelog)

[EZSwiftExtensionsBot]

	34 Errors
🚫	Making non-trivial change requires changelog entry! Please, set trivial change or add entry to changelog.
🚫	Sources/ArrayExtensions.swift#L76: value of type ‘Array<Element>’ has no member ‘swapAt’ if i != i+j { self.swapAt(i, i+j) }
🚫	Sources/UITextFieldExtensions.swift#L68: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion return self.text!.count == count
🚫	Sources/UITextFieldExtensions.swift#L70: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion return self.text!.count > count
🚫	Sources/UITextFieldExtensions.swift#L72: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion return self.text!.count >= count
🚫	Sources/UITextFieldExtensions.swift#L74: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion return self.text!.count < count
🚫	Sources/UITextFieldExtensions.swift#L76: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion return self.text!.count <= count
🚫	Sources/NSAttributedStringExtensions.swift#L31: use of unresolved identifier ‘NSAttributedStringKey’ copy.addAttributes([NSAttributedStringKey.underlineStyle: NSUnderlineStyle.styleSingle.rawValue], range: range)
🚫	Sources/NSAttributedStringExtensions.swift#L65: use of unresolved identifier ‘NSAttributedStringKey’ copy.addAttributes([NSAttributedStringKey.foregroundColor: color], range: range)
🚫	Sources/StringExtensions.swift#L57: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion return self.count
🚫	Sources/StringExtensions.swift#L305: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion detector.enumerateMatches(in: text, options: [], range: NSRange(location: 0, length: text.count), using: {(result: NSTextCheckingResult?, _, _) -> Void in
🚫	Sources/StringExtensions.swift#L67: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 else { return }
🚫	Sources/StringExtensions.swift#L73: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 else { return self }
🚫	Sources/StringExtensions.swift#L115: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 && (0..<length).contains(from) else { return }
🚫	Sources/StringExtensions.swift#L123: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 && (0..<length).contains(from) else { return self }
🚫	Sources/StringExtensions.swift#L132: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 else { return }
🚫	Sources/StringExtensions.swift#L138: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 else { return self }
🚫	Sources/StringExtensions.swift#L179: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 && (0..<length).contains(from) else { return }
🚫	Sources/StringExtensions.swift#L187: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 && (0..<length).contains(from) else { return self }
🚫	Sources/StringExtensions.swift#L379: use of unresolved identifier ‘NSAttributedStringKey’ let underlineString = NSAttributedString(string: self, attributes: [NSAttributedStringKey.underlineStyle: NSUnderlineStyle.styleSingle.rawValue])
🚫	Sources/StringExtensions.swift#L413: use of unresolved identifier ‘NSAttributedStringKey’ let colorString = NSMutableAttributedString(string: self, attributes: [NSAttributedStringKey.foregroundColor: color])
🚫	Sources/StringExtensions.swift#L432: use of unresolved identifier ‘NSAttributedStringKey’ attrText.addAttribute(NSAttributedStringKey.foregroundColor, value: color, range: range)
🚫	Sources/ArrayExtensions.swift#L76: value of type ‘Array<Element>’ has no member ‘swapAt’ if i != i+j { self.swapAt(i, i+j) }
🚫	Sources/StringExtensions.swift#L57: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion return self.count
🚫	Sources/StringExtensions.swift#L305: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion detector.enumerateMatches(in: text, options: [], range: NSRange(location: 0, length: text.count), using: {(result: NSTextCheckingResult?, _, _) -> Void in
🚫	Sources/StringExtensions.swift#L67: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 else { return }
🚫	Sources/StringExtensions.swift#L73: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 else { return self }
🚫	Sources/StringExtensions.swift#L115: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 && (0..<length).contains(from) else { return }
🚫	Sources/StringExtensions.swift#L123: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 && (0..<length).contains(from) else { return self }
🚫	Sources/StringExtensions.swift#L132: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 else { return }
🚫	Sources/StringExtensions.swift#L138: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 else { return self }
🚫	Sources/StringExtensions.swift#L179: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 && (0..<length).contains(from) else { return }
🚫	Sources/StringExtensions.swift#L187: ‘count’ is unavailable: there is no universally good answer, see the documentation comment for discussion guard count > 0 && (0..<length).contains(from) else { return self }
🚫	Sources/StringExtensions.swift#L379: use of unresolved identifier ‘NSAttributedStringKey’ let underlineString = NSAttributedString(string: self, attributes: [NSAttributedStringKey.underlineStyle: NSUnderlineStyle.styleSingle.rawValue])

	8 Warnings
⚠️	Sources/FloatingPointExtensions.swift#L17: result of operator ‘*’ is unused for _ in 0..<places { divisor * 10 }
⚠️	Sources/FloatingPointExtensions.swift#L16: variable ‘divisor’ was never mutated; consider changing to ‘let’ constant var divisor: Self = 1
⚠️	Sources/FloatingPointExtensions.swift#L30: result of operator ‘*’ is unused for _ in 0..<places { divisor * 10 }
⚠️	Sources/FloatingPointExtensions.swift#L29: variable ‘divisor’ was never mutated; consider changing to ‘let’ constant var divisor: Self = 1
⚠️	Sources/FloatingPointExtensions.swift#L17: result of operator ‘*’ is unused for _ in 0..<places { divisor * 10 }
⚠️	Sources/FloatingPointExtensions.swift#L16: variable ‘divisor’ was never mutated; consider changing to ‘let’ constant var divisor: Self = 1
⚠️	Sources/FloatingPointExtensions.swift#L30: result of operator ‘*’ is unused for _ in 0..<places { divisor * 10 }
⚠️	Sources/FloatingPointExtensions.swift#L29: variable ‘divisor’ was never mutated; consider changing to ‘let’ constant var divisor: Self = 1

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