Create strings.xml

Chinese translation，values-zh-rCN
Adjustments for Android 4.4

I tested most options and solved the few errors that appeared in the log.
Lots of things happened in the memory handling area - there might be a
better way to achieve resident apps now, but I didn't look closer.
Create strings.xml
Update strings.xml

Slovak language, values-sk
Update strings.xml

Slovak language, values-sk
Added import/export option:
- settings are stored in AppSettings-Backup.xml on the sdcard root
- now requires WRITE_EXTERNAL_STORAGE permission
Moved About to a dialog box triggered from a menu option, increasing the available space for the main panel.
Fixed typo in Adapter classes and variable names
Fix import not working when no saved settings exist
Fix NPE in About dialog when the module is not active
Merge branch 'master' of https://github.com/ja-som/XposedAppSettings
Adjust sk resources with Import/Export entries
Merge branch 'values-zh-rCN' of https://github.com/qhq/XposedAppSettings
Adjust zh_CN resources with Import/Export entries; fixed xml typo
Bump version to 1.6
About, text updates
Upstream merge 1.6