Added spanish translation for 1.7.2

Added a new translation; English to Mexican Spanish.
Merge pull request #1 from jose-vm/patch-1

Added spanish translation for 1.7.2
Updated the GUI and fixed shift clicking
MiningRig now uses the GPU's to create dogecoins
started to add new slot for dogecoin output
Fixed some typos :D
Merge pull request #3 from jose-vm/patch-3

Fixed some typos :D
Pretty much finished the MiningRig
Added a debug log
Renamed BasicInfo to DogeInfo
Moved config settings into DogeInfo
Added config settings for mining rig and gpu speed and chances
Update Version.py fixed to use DogeInfo rather than BasicInfo
Moved GPU speed increase to attemptMine
Added proper texture to MiningRig
Made the MiningRig 'rotate' its texture
Added particle effects to MiningRig
Renamed some stuff in NBTHelper
Fixed the problems with the MiningRig not updating if its inventory wasn't open by using metadata.
Finished textures for MiningRig
Made the text on MiningRigGUI localized and always centered.
Added particle effects to the GPU
GPU particles now show correctly in 3rd person
MiningRig particles only show when there isn't a block in the way
Merge remote-tracking branch 'remotes/origin/1.7.2' into 1.7.10