bump: 0.7.0

Also updated onyx to ~> 0.3.0

Author: vladfaust

README.md

@@ -22,10 +22,10 @@ Add these lines to your application's `shard.yml`:
 dependencies:
   onyx:
     github: onyxframework/onyx
-    version: ~> 0.2.0
+    version: ~> 0.3.0
   onyx-sql:
     github: onyxframework/sql
-    version: ~> 0.6.0
+    version: ~> 0.7.0
 ```
 
 This shard follows [Semantic Versioning v2.0.0](http://semver.org/), so check [releases](https://github.com/onyxframework/rest/releases) and change the `version` accordingly. Please visit [github.com/crystal-lang/shards](https://github.com/crystal-lang/shards) to know more about Crystal shards.
@@ -36,10 +36,10 @@ You'd also need to add a database dependency conforming to the [crystal-db](http
 dependencies:
   onyx:
     github: onyxframework/onyx
-    version: ~> 0.2.0
+    version: ~> 0.3.0
   onyx-sql:
     github: onyxframework/sql
-    version: ~> 0.6.0
+    version: ~> 0.7.0
 + pg:
 +   github: will/crystal-pg
 +   version: ~> 0.15.0

shard.yml

@@ -1,5 +1,5 @@
 name: onyx-sql
-version: 0.6.2
+version: 0.7.0
 
 authors:
   - Vlad Faust <mail@vladfaust.com>