Switch attributes of LESS/CSS elements
Add make target for generating CSS from LESS files

Seems nicer than the generate_css.sh script there before.
Convert offer dates to datetimes

* This gives more flexibility to offers in how they are used.
* Am using a jQuery datetimepicker from: http://trentrichardson.com/examples/timepicker/
Use jQuery UI styles to get slider CSS

This overrides the previous styles though which is undesirable.  Will
need some FED attention.
Fix a conditional logic bug in condition form template

Was showing a heading unnecessarily.
Adjust JS for date(time) pickers to be configurable

This change should allow Oscar projects to configure the options that
get passed to the date widgets.
Format datetimes to hide time if it is midnight

This simplifies the display of offer date ranges as you don't get all
the "00:00:00 +0000" gubbins with each datetime.
Move jQuery UI CSS into block that doesn't use less
Rejig the 'Create new offer' button
Add guide for FEDs on customising statics
Fix string formatting bug in fork_statics man. command
Fix Sphinx warnings/errors
Update LESS example in docs
Upgrade to jQuery 1.9.1
Add virtual-node and virtual-less
Switch to less 1.3.3
Clean up templates further
Replace STATIC_URL with static template tag
Add another round of compressor fixes
Correct compression inheritance in dashboard layout