Fixed scopes concatenation.
Implemented AuxToken. NOT TESTED.
renamed UserAgent according to specification
Implemented AuxToken.
Merge remote-tracking branch 'origin/dev' into dev
Implemented DefaultUserAgent for all SDK users.
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/main/java/com/yandex/money/api/net/DefaultApiClient.java