Spanish Translation

just quickly added the spanish translation.  Hope it helps!
Merge pull request #67 from fraguada/master

Spanish Translation
added language files for korean
Merge pull request #68 from neropsys/master

added language files for korean
Merge branch 'master' of https://github.com/repetier/Repetier-Server
Merge branch 'master' of github.com:epatel/Repetier-Server
tweak php printer.php