added docopt instead of argparse.
replaced argparse with docopt
Remove unncessary functions and imports

Removed from globals.py:

* import generate as g (I'm not even sure what this was doing or where it was referenced)
* The get_settings_file def, which is now in meTypeset.py
Add docopt.py

This decreases external dependencies and also ensures we can work against a particular stable version.

The license is compatible so shouldn't be a problem.
Cleanup and fixes

* Added print_message_and_exit function as my environment couldn't find it.
* Added import docx2tei as this is how we find the settings path (via docx2tei.__file__)