Merge pull request #266 from AndHam89/master

Comment out reporting on resource usage, some cleanups
Merge pull request #267 from AndHam89/master

Replaced '_()' by '__()' locale function
Merge pull request #268 from AndHam89/master

 	Removed the UTF8 error due to a illegal character in a comment; English translation added for a Spanish comment
Added temperature, humity and real power info to dc_stats and zone_stats. Fixes #155

Using tooltips for numerical data of cabinets
Column 'Half Depth' added providing the half depth information on devices and their position 'front' or 'rear'.