check LC_MESSAGES before checking LANG

LC_MESSAGES is the standard way to set the language of the displayed messages
if the user wants it to be different than the one set in LANG.
Merge pull request #240 from tsudoko/lc_messages

check LC_MESSAGES before checking LANG
add some more Polish strings
Merge pull request #241 from tsudoko/translation-pl

add some more Polish strings
fix some overflowing text issues
upsidedown dropdowns
fix issue
fix clipboard issues
fix issue
fix something
..
make it build
bootstrap change
initial proxy stuff
fix
prevent segfault
fix issue
fix
..
Tweak German translations