Updated Czech translation

Minor fixes to existing strings.
Updates to match
https://github.com/asksven/BetterBatteryStats/issues/550 and
https://github.com/asksven/BetterBatteryStats/issues/557
Deleted translated arrays.xml

Deleted translated backup arrays.xml.old1 altogether, For now it won't
be translated.
Minor translation fix
Merge remote-tracking branch 'upstream/master'
Updated Czech - #563

Updating translations to match changes for #563
Merge remote-tracking branch 'upstream/master'
Updated Czech translation

Another update, matching current upstream master
Merge pull request #559 from mag01/master

Updated Czech translation. Thanks to mag01 @ XDA