setup.py: Updated Flask-Script dependency to v0.6.7
setup.py: Updated Flask-Login dependency to v0.2.9
setup.py: Updated GeoAlchemy2 dependency to v0.2.3
setup.py: Updated Shapely dependency to v1.3.0
setup.py: Updated SQLAlchemy dependency to v0.9.3
setup.py: Updated closure dependency
setup.py: Updated psycopg2 dependency to v2.5.2
setup.py: Updated alembic dependency to v0.6.3
setup.py: Updated Markdown dependency to v2.4
setup.py: Updated Twisted dependency to v13.2.0
setup.py: Updated Flask-Migrate dependency to v1.2.0
Merge pull request #265 from Turbo87/updates

Dependency Updates
commands: Added "aircraft add_model" command
Revert "setup.py: Updated SQLAlchemy dependency to v0.9.3"

This reverts commit 32c3e0c3dc7e87dee21badd004bd7f05bd22fd53.

This update actually caused problems with the ranking list. Will have to be
examined further before it can be applied again.
Merge pull request #266 from Turbo87/new-aircraft-models

Added "aircraft add_model" command
mapserver: update airspace files
commands.import_.airspace: allow https urls
commands.import_.airspace: add debug flag
setup.py: use xcsoar package version 0.2.1