Set equivalent projection when possible (see #177)

We want to set the equivalent projection even if the bbox isn't advertised in the same.
Use Strategy.Fixed by default for FeedSource, Strategy.BBOX for Picasa and Youtube
Merge pull request #190 from justb4/master

Fix for gxp #189 - allow matchCase in WFS Filter
if we have values that resemble an interval in the time slider, guess the best way to present the tooltips see also https://github.com/opengeo/mapstory/issues/616
allow configuring maxframes and prebuffer
only check for units not for the actual value when determining the tooltip precision for the time slider
when determing the time precision for the tooltip, use the lowest unit of an interval
in interval mode, take into account the timeUnits when guessing the time format for the slider
do not throw error but warn in the console instead
get rid of buttons in PlaybackOptionsPanel's bbar
prevent scrollbar in playback options panel
Fix fill opacity in fill symbolizer
Merge pull request #192 from alediator/83841-fill-opacity-fix

Fix fill opacity in fill symbolizer
Merge pull request #184 from cga-harvard/feedstrategy

Use Strategy.Fixed as default for FeedSource, Strategy.BBOX for Picasa and Youtube (r=@bartvde)
Support for ArcGIS REST layers
Add a dropdown to NewSourceDialog for selecting between source types (WMS, ArcGIS REST).
Clean up a few lines
Tweak text
fix typo
protect the timeline against annotations without content
work in progress on a TMS source