lint
Merge pull request #1293 from JustinSGray/docs_update

Docs update
Merge branch 'dev', remote-tracking branch 'origin' into guidev
removed some debugging console outputing
Merge pull request #1298 from thearn/guidev

Guidev
Seems to all be working, and fast
Merge pull request #1299 from Kenneth-T-Moore/cal

Some performance and display fixes for input/output filters in the GUI
Merge branch 'dev' into gui
Changed redirected links; edited reqs. section in Dev Guide. Made a couple other editorial fixes.
Merge pull request #1300 from pziegfeld/march2013_links

Changed redirected links, edited Dev Guide reqs. section, made other minor fixes.
Merge branch 'dev' into gui
changing check_config to be called everywhere before execution of model
interface update
small fix
fix for distsim
removed the 'required' metadata from the 'best_case' Slot in expected_improvement
small fix to FixedPointIterator
Merge pull request #1302 from naylor-b/check_config

check_config is now called for the whole hierarchy below the executed component
ExternalCode changes per Chris Heath.
add base classes to metadata for available_types
add base classes to gui library draggables (for slot type matching)