Merge pull request #1422 from setowns1/bug

Switch to pyparsing 1.5.7, only specify in go script.
add selector to gui Object Tree frame to allow choosing components or workflow view
Merge branch 'gui' of github.com:swryan/OpenMDAO-Framework into gui
get gui functional test for component tree working again
style gui objects tree selector to match file tree menu
add preference for gui objects tree selector
fix library search gui functional test
Merge pull request #1426 from swryan/gui

gui - allow user to select component tree or workflow tree in object tree frame
Merge pull request #1425 from setowns1/bug

Better eggsaver, minor bug fix to CSVFile DOE generator.
add a simple image viewer tool to the gui (using MIT licensed 'galleria')
add "View Image" context menu item to gui File Tree
Merge pull request #1427 from swryan/gui

Gui
Alphanumeric sorting for component inputs & outputs in GUI.
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into bug