move ts files into translations subdirectory
avoid path in bin cause error in setting

my configure --prefix set as $HOMEDIR/bin on Linux platform, the qucs
will be installed there, and setting files like language files will be
$HOMEDIR/bin/share ... qucs itself will be $HOMEDIR/bin/bin/

Previouse setting, the path will remove all /bin, so qucs search
language files in $HOMEDIR/share ..., of course it cannot find

use cdUp() to assure that qucs find previous directory
autotools modification to support subdirectory
cmake modification to support subdirectory
remove getundefined.py

this is accidentally added when remove qtgui
Merge branch 'move-translation-subdirectory' of https://github.com/yodalee/qucs