Update Xapian install
Merge pull request #1044 from areski/patch-1

Update Xapian install instructions (thanks @areski)
Add PyPy targets to Tox & Travis

Closes #1049
Update example for Faceting to reference page.object_list

Instead of `results` - ref #1052
Merge pull request #1053 from gandalfar/patch-1

Docs: update Faceting example with correct template context (thanks @gandalfar)
Fallback to pwd if realpath is not available
Merge pull request #1055 from andreif/feature/realpath-fallback-osx

Tests: Solr test server script now handles OS X without realpath / coreutils (thanks @andreif)
Travis, Tox: add Django 1.7 targets