Default WebSocket URL to localhost when served from file://

Convenient when developing. Also, before this change the WS URL
setting UI would not showing up, making it hard to customize the URL.
Merge pull request #13 from jonnor/default-ws-url

Default WebSocket URL to localhost when served from file://
Don't override components we already know about, just amend them
Merge branch 'master' of github.com:noflo/noflo-ui
Include the PNG version of the icon
More flexible baseDir handling
Load dependencies only when needed
Exports editing, fixes #15
Make node export a selection
firefox fix
Some work on project support, refs #17
Merge branch 'master' of github.com:noflo/noflo-ui
Show console output from server
Add labels for the menucard buttons, refs meemoo/dataflow#76
Clear IIP if a connection is made to that port, refs meemoo/dataflow#72
speed up logs meemoo/dataflow#77
Merge branch 'master' of github.com:noflo/noflo-ui
Remove state from Dataflow node when removing IIP, fixes meemoo/dataflow#71
Merge branch 'master' of github.com:noflo/noflo-ui
Merge branch 'master' into gh-pages