Add the sidebar block in the master template

This allows to set a block outside the main frame
Add icon for the ical export
Add icon for the list view change of a calendar
Add icon for adding a new meeting
Add a side bar to the calendar view containing some shortcuts

These shortcuts are:
* Add a meeting
* Switch to list view
* Export to iCal
Add icon for the calendar view
Add sidebar section in the meeting list view with shortcuts

These shortcuts are:
* Add meetings
* View calendar as calendar
* iCal export

Fixes https://fedorahosted.org/fedocal/ticket/114
Small pep8 fixes
Fix the unit-tests, there are no calendar set when viewing a location's calendar
Mention the origin of the logo in the sidebar menu in the documentation

Mention the license they have at the time of their inclusion
Merge pull request #121 from fedora-infra/shortcuts

Shortcuts