Implement Event model
Add EventFactory
Add specs for Event model
Modify field names on Evevnt model
Add specs for event validations
Add specs for Event methods
Remove markitupfield
Fix Event#attendees field
Merge pull request #1 from kawazrepos/feature/event

Implement Event model
Merge events
Move packages to src dir
Fix README format
Fix code block of README
Update README.rst

Change travis-ci icon format from png to svg
Update README.rst
Modify project name
Remove --use-mirrors from .travis.yml

According to pip relase note, --use-mirrors option have been deprecated.
http://pip.readthedocs.org/en/latest/news.html
Modify README
Move events into src