Adding hhvm to version list, as well as the allowed failures.
Introduce depth infinity for PROPFIND
adding configuration parameter to enable depth infinity support
adopt unit tests for depth infinity
adjust comments on depth values
tab-to-spaces, PHPDoc adjusted/added and namespaces cleaned
Merge pull request #398 from DeepDiver1975/depth-initinity-master

Introduce depth infinity for PROPFIND
Merge branch 'master' of github.com:fruux/sabre-dav
Documentation tweaks for #398.
Releasing second alpha.

The first alpha now breaks when installing with composer, due to some of
its dependencies updating in a BC-breaking way (in particular,
sabre/http, which is now released).

So a new alpha release is appropriate.
Changelog is now in markdown format.
Update ChangeLog.md
Added 1.2.5 release
Removing the -stable prefix for consistency.
Merge branch 'master' of github.com:fruux/sabre-dav
Merge branch 'master' into calendar-auto-schedule
Making sure unittests pass.