Merge pull request #97 from Hello71/qjsengine

Move from deprecated QtScript to QJSEngine
Merge pull request #98 from Hello71/unused

Remove unused source files.
Remove OS-specific entries from .gitignore.

.gitignore should only store items that are generated by the code in the
repository. If your operating systems generates temporary files, put
those in your .gitignore_global.
Use process_vm_{read,write}v instead of ptrace

This approximately doubles the speed of Dwarf Therapist on Linux, and
fixes #73.
Silence bad address errors.
Mv etc -> share, use applicationDirPath (fixes #30)

Also build outside of bin.
Add DATADIR, search_paths for game_data.ini
Merge branches 'gitignore', 'process_vm' and 'share' into DF2014

Conflicts:
	.gitignore