pngcrush all our data pngs

find data -name '*.png' -exec
    pngcrush {} {}.new \; -exec mv {}.new {} \;
[EdiTag Dialog] Fix not displaying translated string
Allow context creation in po files. Brings #4163 to effect
Merge pull request #4191 from sobkas/clang_r200967

Reformat done with clang-3.5 svn200967
Merge pull request #4192 from pejakm/trfixes

[EditTag Dialog] Fix not displaying translated string
Merge pull request #4193 from pejakm/xgttxt

Allow context flag creation in po files. Brings #4163 to effect
Fix all errors reported by cpplint.py
Fix all+1 errors reported by cpplint.py
Updated and modified cpplint.py
Add cpplint.py options used by myself
New line with newline
Set default filters in cpplint.py
Default filters are already set, no need for it here