make settings panel flexible height
No extension for style view
make the port configurable
tidy up settings action buttons
fix z index issue
Merge pull request #299 from mapbox/flexible-settings

Flexible settings
explain baselayer id input
Merge pull request #300 from mapbox/clarify-baselayer

explain baselayer id input
fix language
fix spacing
fix z index issue
opaque codemirror linenumbers in source mode, closes #301
bookmark directly from search result, closes #284
disable the mapid input
prompt add source when creating new source
better form validation reporting, refs #304
fix url hash reset
Merge pull request #303 from mapbox/new-source

prompt add source when creating new source
initial concept for empty states
more empty stats