+ Electronic Case + New .dxf of Base, Workbed and Calibration electrode
Rename folders
Merge pull request #20 from bq/master

Merge #19 into the development branch
Fixed README image paths
Removed submodules for simplicity
Included a copy of the required libraries
Moved libraries into source code folder
Moved inherited files to the folder
Modified the description of the inherited parts
Abbreviated source files name
Fixed paths in scad scripts
Moved logos into source folder
Renamed folder to dxf
Removed reference to undefined variable
Removed unnecessary dxf files