flask: Moved index.html files into new templates folder
flask: Moved views, templates and app.py into prosoar package
flask: Replaced app.py by Flask-Script manage.py
deploy: Use published mergejs package from PyPI

.. instead of bundling it in the repo
i18n: Use pybabel -o parameter
flask: Use Flask-Babel extension for locale handling
i18n: Moved files into prosoar/translations folder

see http://pythonhosted.org/Flask-Babel/#translating-applications
i18n: Extract messages also from python files and jinja2 templates
i18n: Merged index.html variants into single template with gettext() calls
scripts: Removed redundant cleanup.sh
Updated .gitignore file

source: https://github.com/github/gitignore/blob/master/Python.gitignore
Removed MapServer/TileCache references from AUTHORS file

These are not used anymore.
deploy: Simplified if condition
flask: Fixed /airports/<path> route
task: Use aerofiles.xcsoar.Writer in xcsoar_writer.py
task: Use aerofiles.seeyou.Writer in seeyou_writer.py
task: Moved unrelated code out of the with clause
task: Removed dead code path
task: Merged duplicate code
task: Moved more code out of unrelated with clauses

.. including dead code path cleanup