Merge branch 'release/v0.3.0'
Merge branch 'release/v0.3.0'
Merge branch 'release/v0.3.1'
Merge branch 'release/v0.3.2'
Merge branch 'release/v0.3.3'
Generating tox in prep for Python3 work
Convert to Python 2 and 3 dual code base

tox tests against Python 2.7 and Python 3.4
South 0.7.x doesn't work with Python 3.4, so dropped
Add test for 100% branch coverage
Add python3 info to setup
Merge branch 'python3'
Update docs for Python 3 support
run_tests.py - allow test file argument
Warn about duplicate imports
Add single service to trips
Migrate from trip.services to trip.service
Add multigtfs logs to explore sample project
Fix and avoid bugs in _unique_fields
Update example app for 1 service per trip
Add new sample test feed, closes #20
Remove unused code from trip.services removal