Progress on sorting by clicking on columns.
Merge branch 'master' of https://github.com/ldevesine/Calvin into john_dev
Added a custom ArtHandler so we can do our own icon files in a nice way.
Minor bugfix with the new icons.
re-add graphing button, icon updates
Merge branch 'graphing'
Minor additions, fixes.
Made it so the drop down menus drop down no matter where you click.
Merge branch 'master' of https://github.com/ldevesine/Calvin into john_dev
Merge branch 'David'
add a small dialog to select some graphing options

Dialog is currently very ugly, there are lots more options the can be made available. Also graphs desperately need labels on axes & legends. Also-also, need to do some work w/ David on unifying "error" type value names.
Merge branch 'graph-options'
Sort-by-column-label-click mostly working.
Added a custom label renderer to display sorting arrows.
Sorting on column label click working well.
Added the filter, sort, and search information to the bottom info pane.
Changed the text bar on the bottom to a status bar.
Further updates to the status bar; made it the actual status bar.
Merge branch 'master' of https://github.com/ldevesine/Calvin into john_dev

Conflicts:
	src/cscience/GUI/Util/__init__.py
Added axes labels and default options for the GraphingOptions Dialog