Updated docs_root variable

Updated docs_root variable, so it will show url for currently selected language.
Language update
Added German language
Merge pull request #192 from scento/master

Add German language
Update index.volt
Merge pull request #194 from czepol/patch-1

Update index.volt
Merge pull request #190 from gholol/master

Updated docs_root variable
UtilsController more beautiful