Changed Home page. Added exception"s catching for mfsmaster connection.
Changed stdout to return code in mount commands. Trash info page modified.
Fixed renaming of useful_functions to common_functions
Updated exceptions on clients, metaloggers and chunkservers page
Modified trash and data templates. Added path"s levels for trash info part.
Home page modified to table
Merge pull request #65 from AnaPana/master

Merge last changes before package making