Adding some information on using pip and virtualenv
Update installation.rst

Added some detail on how to install in a virtualenv
Update installation.rst
Conflicts:

	docs/getting_started/installation.rst
Update installation.rst

Removed references to PIL and added instructions for installing Pillow globally using pip (because there is no .deb package for Pillow)
Update installation.rst

Oops
Update installation.rst

I assume this is what you meant by fixing the header markup? Thanks for reviewing this.
Added 'changed_date' and 'changed_by' to page_attribute template tag
Added test for features in last commit ('page_attribute')
spelling mistakes, yea
template tags don't take filters
fixed 'before_change' reporting time later than 'page_change,' due to some databases droping microseconds.
more absent minded mistakes.
yea, ...
fixed too short title overline
Update AUTHORS
Merge pull request #1920 from vinitcool76/develop

Update AUTHORS (original author of 422f97b780396f4d1ec05e492397c4705e50064e was Pratik Vyas)
Merge pull request #1915 from Klupamos/develop

Added 'changed_date' and 'changed_by' to page_attribute template tag
fixed "overline too short" error
fixed build warning about duplicate virtualenv reference
fixed another build issue