0006848: citationtreeview corrupts when search bar open and edit occurs
0006829: Searching into source/citation selector disallows to select all related citations, only matching rows
by fixing treebasemodel so it properly deals with secondary objects, and also citationtreemodel so it adds secondary odes even when the parent is not present.
svn: r22939
1) add SVN svn:keywords "Id" property if it didn't have it
2) add SVN svn:mime-type "text/plain" property if it didn't have it
3) add SVN "Id" line to the file if it had none
svn: r18554
* updates to citationviews to support all the functionality (add source etc.) provided by sourceview (including different tooltips for tree view and list view)
* moved registration of citationtreeview into view.grp.py
* removed citationtreeview.grp.py module
* fixed update to citation when note is deleted
* fixed update to citation when media object is deleted
* re-enabled edit button in sourcebackreflist
* improved date display in mergecitation
* changed default note type for citation notes
* changed backref in citation editor to CitationBackRefList
* fixed removal of citation handles from the list in primary objects when a citation is deleted
* fixes for pylint
svn: r18095
* Changed database to introduce Citations
* Introduced new Citation Primary object and CitationBase (equivalent to CitationRef) child object
* Implemented CitationTreeModel and CitationListModel
* Implemented CitationTreeView and CitationListView for new citation views in the navigator
* Implemented EditCitation which is used both for the citation views in the navigator and for the citations of an object
* Implemented the CitationEmbedList to display the citations of an object
* Modified the bottom bar gramplets to support citations
* Implemented the citation selector.
* Modified Media object to include references to Citations
* Initial work on deleting citations
svn: r17960