Clean-up Sources and Citations views:

* Add icon for citations view
* disable old sourceview
* change citationtreeview to be Sources navigation view
* citationlistview is now the Citations view
* merge libcitationview into citationlistview and citationtreeview, and corrected and rationalised
* remove libcitationview
* corrected initialisation of source_handle in Citation.py
* fixes for preventing same source being edited twice
    - fixed blockedtext in citationembededlist
    - override build_window_key in editcitation.py

svn: r18211

src/plugins/view/view.gpr.py

@@ -197,20 +197,21 @@ viewclass = 'RepositoryView',
 order = START,
   )
 
-register(VIEW, 
-id    = 'sourceview',
-name  = _("Source View"),
-description =  _("The view showing all the sources"),
-version = '1.0',
-gramps_target_version = '3.4',
-status = STABLE,
-fname = 'sourceview.py',
-authors = [u"The Gramps project"],
-authors_email = ["http://gramps-project.org"],
-category = ("Sources", _("Sources")),
-viewclass = 'SourceView',
-order = START,
-  )
+# FIXME: REDUNDANT As of gramps 3.4, sourceview.py is redundant.
+#register(VIEW, 
+#id    = 'sourceview',
+#name  = _("Source View"),
+#description =  _("The view showing all the sources"),
+#version = '1.0',
+#gramps_target_version = '3.4',
+#status = STABLE,
+#fname = 'sourceview.py',
+#authors = [u"The Gramps project"],
+#authors_email = ["http://gramps-project.org"],
+#category = ("Sources", _("Sources")),
+#viewclass = 'SourceView',
+#order = START,
+#  )
 
 register(VIEW, 
 id    = 'citationlistview',
@@ -237,8 +238,7 @@ status = STABLE,
 fname = 'citationtreeview.py',
 authors = [u"Tim G L Lyons", u"Nick Hall"],
 authors_email = [""],
-category = ("Citations", _("Citations")),
+category = ("Sources", _("Sources")),
 viewclass = 'CitationTreeView',
-stock_icon = 'gramps-tree-group',
 order = START,
   )