moving calendar and events portlets to plone.app.event

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=45637
merge with trunk

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=46611
merge with trunk

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=47163
doc'd changes for p.a.event

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=47164
merge with trunk

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=48545
Fixed previous bad merge

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=48546
fixed bug when navigation root is none and include top is true

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=49312
merge with trunk

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=49635
Merged latest trunk changes to plip9302-vs-event-integration branch

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=50364
avoid broken persistent object

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=51128
merge r51128:51968

svn path=/plone.app.portlets/branches/plip10886-event-improvements/; revision=51971
since calendar is a python module, have another module name.
module name changed to portlet_calendar and portlet_event, since calendar is a python module and for consistency
module name changed to portlet_calendar and portlet_event, since calendar is a python module and for consistency
Merge branch 'plip10886-event-improvements' of github.com:thet/plone.app.portlets into plip10886-event-improvements
module name changed to portlet_calendar and portlet_event, since calendar is a python module and for consistency
merge with remotes/master
Merge remote-tracking branch 'upstream/master' into plip10886-event-improvements
Merge pull request #6 from thet/plip10886-event-improvements

Plip10886 event improvements
merged into the plone.app.event branch
Merge remote-tracking branch 'origin/master' into plip10886-event-improvements