[refs #151] We now write the sha1 of the current commit to a VERSION file. This is read by the gui to display the current version.
Added a cmake module for getting the sha1 hash.
[refs #151] The sh1 is not read in at runtime anymore. Instead, the sha1 now gets written into a cpp file at compiletime.
Merge pull request #153 from augmented-go/#151_add_version_to_gui_info

[refs #151] We now write the sha1 of the current commit to a VERSION fil...