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 :)
fix People test
Merge pull request #72 from bebef1987/try_to_fix_remo

fix People test
Adding test for the list view on People page
Change method name to be more consistent
Update locators to use IDs
Change method name
Merge pull request #73 from anah/people_page

Adding test for the list view on People page
Added an except for StaleElementReferenceException to is_element_visible logic
Merge pull request #74 from bobsilverberg/fix_staleelement

Added an except for StaleElementReferenceException to is_element_visible logic
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.