Enhancement: Ported Tom's restricted extent and zoom validation functionality over from the NHD project. One caveat is that the zoom bar control is no longer valid when restricting zoom levels since a user can only slide down to half way on the bar and no further. Therefore, replaced zoom bar with Zoom control which is a pair of +/- boxes for zooming
Bug: Flowlines were not displaying plotter on rowclick - now they are
Enhancement: Cursor style changing to "wait" when grid row is selected for long-running R process
Enhancement: Added error parsing functionality to R-WPS response
Enhancement: Upped the pixel buffer for on-click identification
Merge pull request #19 from isuftin/master

UI fixups