basic infrastructure for deleting a variable from a variablelist
Added minus button to transitID, transients, and behavior
implemented loading and saving
Added minus graphics
Merge pull request #31 from sbrother/24-loadsave

implemented loading and saving
Merge pull request #32 from sbrother/minus-button

Minus button
unbroke the merge
added session/subject controls
fixed issue with Workspace not copying data files
completed session control including schemas
export save button
fixed some bugs and added alert messages
Merge pull request #33 from sbrother/24-finish-sessions

24 finish sessions
Merge pull request #34 from sbrother/minus-button

export save button
fixed image icons
added image files
made some improvements to del_button_mode"
Merge pull request #35 from sbrother/improve_del_mode

made some improvements to del_button_mode"
replaced crappy images with better ones
removed old files