Update requirements

* now needs a Fortran compiler! :D
Fix bugs
Merge branch 'astrolab-tags' into packaging
Create build/dist directories in ./..
Install requirements
Bugfix
Load model data from user data directory
Auto-download model data
Move logo to static/images/
Moved default_config.py to web_ui package
Working on imports
Improve log output
Merge branch 'dev' into packaging

Conflicts:
	run.py
Fix py2app
Enable packaging for PyPi
Add icon file
Add shell script for creating OSX DMG
Open web browser on start
Change file names of settings files
Bug fixes