added tests for issue 59 - Edit User Mail Preferences.

P.S. Together with Bebe we were able to create this test :D
implemented changes as suggested by AndreiH's code review

I also added pep8 checks to Aptana, so I hope I won't have so many code
style comments from now on :)
Adding test for exporting events iCalendar
Merge branch 'master' of git://github.com/mozilla/remo-tests into events_calendar

Conflicts:
	tests/test_events_page.py
Merge pull request #71 from anah/events_calendar

Adding test for exporting events iCalendar
fix for issue #75
Merge pull request #76 from sashakruglov/issue_75

possible fix for issue 75
Fix a type error - cannot concatenate str to tuple
Merge pull request #77 from anah/page

Fix a type error - cannot concatenate str to tuple
Update locator to use By.ID
Add test to verify advanced options are visible
Merge pull request #78 from anah/events

Add test to verify advanced options are visible and update locators to use IDs
Merge pull request #62 from alexrotaru/test_settings

added tests for issue 59 - Edit User Mail Preferences.
Fix for failing CI tests
Merge pull request #79 from AndreiH/fix_people

Fix for failing CI tests
Add test to verify events timeline is visible
Merge pull request #81 from anah/events

Add test to verify events timeline is visible
Add pytz version to fix issue #82
Merge pull request #83 from anah/events_calendar

Add pytz version to fix issue #82
Fix locators on About page
Fix linkcrawler to deal with request timeouts