Merge branch 'release/0.6.3.0' into develop
prepare for next development cycle
#44 Add version number in main view
#47 move api keys to properties file
#48 configure and describe full maven-android workflow
Update README.md

as detailed in #48
Update README.md
Update README.md
#16 download fav caches

create GUI, prepare needed classes and methods, connect it to the rest of application elements
#16 download fav caches

implement the mechanism to create proper request to okapi
refactor handling of json answer
Merge branch 'feature/#16_download_fav_caches' into develop
#48 add zipalign to release process
release 0.6.4.0
Merge branch 'release/0.6.4.0'