Update README.md

Fortumo notice in the Untiy readme
Update README.md

added instructions to test SAM
Add NBS support.
Fix dependencies.
Remove from ignore gradle-wrapper.jar
Add empty line in end of gradle files.
Revert manifest changes.
#252 fix
Merge pull request #251 from kirich1409/99-nbs

Add NBS support.
Add fortumo disable possibility.
update gradle build scripts to be consistent
cleanup AndroidManifest files
update gitignore to better support AndroidStudio
cleanup all gitignore files
remove redundant iml file
Merge pull request #254 from RomanZhilich/cleanup-gitignore

update gitignore to better support AndroidStudio
return version info and sdk requirement to AndroidManifest files
Add build unity plugin without fortumo.
Fix build unity plugin.
Fix build unity plugin.
Change directories that using in build.
Remove unused gradle code.
Fix increment build OpenIab Unity plugin.