Bump build number and version - 0.5.3-RC1
Merge branch 'develop' into release-0.5.3
Bump build number and version for 0.5.3 RC2
Merge branch 'develop' into release-0.5.3
Bump version and build number for 0.5.3 RC3.

Forgot to commit before uploading actual APK.
Changelog for 0.5.3
Bump version and build number for 0.5.3
Merge branch 'release-0.5.3' into develop