Testing vobject 3.1
Merge branch '1.7' into 1.8
Fixed unittest.
Unused object.
Two more unused variables.
Fixed signature.
Fixed docblocks.
Another docblock.
Fixed example.
SabreDAV catches every exception again.
Adding a component= attribute to the Content-Type of calendar objects.

But only if the backend provides it. Fixes Issue #358.
Added a slew of features to ICSExportPlugin.
Don't E_NOTICE when component is not provided.
Incorrect return type. thnx @gharlan
Corrected variable name.
Ignoring Brief if Prefer is supplied.
jCal support.
Updated changelog
Typos
Possible fix for dealing with usernames with spaces in them.