clear home ws with prompt to save unsaved changes
remove changes related to another task
add view for boolean node
small refactoring
small code improvement
separate UnsavedWorkspaceChangesHandler on model and view layers; relocate "New" button
Merge branch 'clearing-home-ws' of https://github.com/marimano/flood into clearing-home-ws

Conflicts:
	app/scripts/models/UnsavedWorkspaceChangesHandler.js
fix wrong extension
Correct setting of "useDefault" property.
Merge pull request #91 from marimano/Reach

REACH-137 Custom Node Save As file type is ".dyn", should by ".dyf"
Merge pull request #93 from pbidenko/Defaults

Correct setting of "useDefault" property.
Merge pull request #90 from marimano/boolean-view

REACH-122 Add view for Boolean node
Merge pull request #89 from marimano/clearing-home-ws

REACH-93 Create new Home workspace in nwk
Merge branch 'Reach' of https://github.com/pboyer/flood into REACH-132

Conflicts:
	app/scripts/views/AppView.js
	app/scripts/views/NWKSaveUploaderView.js