SciDAVis - Improvements SVN-temp

- fixed bug 1926075: labels are swapped when duplicating graph

- some small fixes in Table/TableView (including 2 icons)
- fixed current subwindow <-> current aspect synchronization in
the project explorer
- added matrix commands for format and coordinates
- designed matrix control tabs
- added actions and context menus in Matrix
- added several methods in Matrix
- fixed several bugs in Matrix
- MatrixModel now shows the coordinates in the headers

- add ActionManager support to ProjectWindow

- improved the table project menu and added an action
to resize the table
- removed undo/redo from context menus
(does anyone object?)
- improved context menus for Folder and Project
- moved all actions from Project to ProjectWindow
- fixed window visibility policy
- implemented windows menu

- changed the way the project window menu for the active part
is managed; the new solution avoids constant creation of
new menus or actions/slots as well as cluttering the menu bar with
lots of inactive menus
- renamed the "Outer" functions in AbstractAspect to "prepareAspectRemoval()"
and "completeAspectInsertion()" and implemented them for Table
- added ActionManager and project menu support to Matrix
- added lib/macros.h for things like the ACCESSOR macros
- removed some obsolete/superfluous code

- added a mechanism to customize application-wide/module-wide
keyboard shortcuts (ActionManager)
- added a dialog class which records key combinations from
the keyboard and assigns them to an action managed
by an ActionManager (ShortcutsDialog)
- added a "keyboard shortcuts" entry to the edit menu in
ProjectWindow which opens a ShortcutsDialog
- implemented action management/keyboard shortcut customization
for Table

- Fixed icon resource files (broken in r822).
- ImageExportDialog remembers page orientation.

- Changing config.pri now triggers recompilation of core/staticplugins.cpp.
After changing MODULES, a simple "make" will now suffice to update everything.
- Some minor fixes.

- fixed several issues in Matrix and related classes

Some improvements regarding const-correctness:

Signals of AbstractAspect and AbstractColumn are emitted from within undo
commands. Hence, changing the originator in reaction to these signals is almost
certainly a bug. In other words, the pointer to the Aspect/Column being changed
is conceptually const.

Likewise, having a filter change its inputs is dangerous and should be
discouraged. SimpleMappingFilter needs some rethinking; if possible in the
context of an actual use case.