use latest ZXing release (3.5.3)

Among other improvements, this release of ZXing fixes the brokenness of the
`--raw` option (added in 3.5.0, but broken for `PDF_417` and maybe other
barcode types). See my bug report and fix for that issue at
zxing/zxing#1682 and
zxing/zxing#1683.

Author: dlenski

README.md

@@ -15,7 +15,7 @@ evolved considerably beyond that ancestral package.
 Use the Python 3 version of pip (usually invoked via `pip3`) to install: `pip3 install zxing`
 
 * You'll neeed to have a recent `java` binary somewhere in your path. (Tested with OpenJDK v7, v8, v11.)
-* pip will automatically download the relevant [JAR](https://en.wikipedia.org/wiki/JAR_(file_format)) files for the Java ZXing libraries (currently v3.5.1)
+* pip will automatically download the relevant [JAR](https://en.wikipedia.org/wiki/JAR_(file_format)) files for the Java ZXing libraries (currently v3.5.3)
 
 ## Usage
 
@@ -31,8 +31,8 @@ The `BarCodeReader` class is used to decode images:
 BarCode(raw='This should be QR_CODE', parsed='This should be QR_CODE', path='test/barcodes/QR_CODE-easy.png', format='QR_CODE', type='TEXT', points=[(15.0, 87.0), (15.0, 15.0), (87.0, 15.0), (75.0, 75.0)])
 ```
 
-The attributes of the decoded `BarCode` object are `raw`, `parsed`, `path`, `format`, `type`, and `points`. The list of formats which ZXing can decode is
-[here](https://zxing.github.io/zxing/apidocs/com/google/zxing/BarcodeFormat.html).
+The attributes of the decoded `BarCode` object are `raw`, `parsed`, `path`, `format`, `type`, `points`, and `raw_bits`.
+The list of formats which ZXing can decode is [here](https://zxing.github.io/zxing/apidocs/com/google/zxing/BarcodeFormat.html).
 
 The `decode()` method accepts an image path or [PIL Image object](https://pillow.readthedocs.io/en/stable/reference/Image.html) (or list thereof)
 and takes optional parameters `try_harder` (boolean), `possible_formats` (list of formats to consider), and `pure_barcode` (boolean).

setup.py

@@ -23,8 +23,8 @@
 
 
 def download_java_files(force=False):
-    files = {'java/javase.jar': 'https://repo1.maven.org/maven2/com/google/zxing/javase/3.5.2/javase-3.5.2.jar',
-             'java/core.jar': 'https://repo1.maven.org/maven2/com/google/zxing/core/3.5.2/core-3.5.2.jar',
+    files = {'java/javase.jar': 'https://repo1.maven.org/maven2/com/google/zxing/javase/3.5.3/javase-3.5.3.jar',
+             'java/core.jar': 'https://repo1.maven.org/maven2/com/google/zxing/core/3.5.3/core-3.5.3.jar',
              'java/jcommander.jar': 'https://repo1.maven.org/maven2/com/beust/jcommander/1.82/jcommander-1.82.jar'}
 
     for fn, url in files.items():