translated feature graphics and screenshots for fdroid

minor translation fixes

• Added Polish translation. Thanks to verdulo.
• Added Esperanto translation. Thanks to verdulo.

Added 6 new levels (new winter theme)

Improved Russian translation. Thanks to Dmitry.

• Improved French translation. Thanks to xin.
• Added a new localized Keyboard for each language to enter player names.
• Added fdroid screenshots for each supported language.

two bugfixes for crashed of the computer opponent and one bugfix letting the name not to be empty

Repacked textures to improve performance, added fdroid screenshots, added support for Cyrillic script, added French and Russian languages, upgraded game engine libgdx to latest version, to improve performance and remove bugs

reduced waiting time, by removing effectless slowly rolling apple from the ground

Improved speed: reduced waiting time, when playing against computer to zero.

Fixes translations, fonts and all I18N issues. Release is now correctly working for English, German and Spanish

Added language selection screen, so the language can be chosen independently from the system language.

Fixed the release version. A bug in the last version, made only Debug run but rendered release broken.

Updated package name and removed all permissions from android manifest.

GPLed version of latest google play release. All google APIs removed