Add initial styles for daterange markup
Don't import ; update less buildfile and css file
Don't import `.input-append .add-on`; update less buildfile and css file
Implement initial daterange picker
Merge latest master changes into range branch

--HG--
rename : build.less => build/build.less
Added "today" button to datepicker footer.
Made presence of "today" button cofigurable.
Capitalized "today" value in l10n files.
Added "today" button to month and year views.
Switch back to day view when selecting current date.
Renamed data-today-btn attribute to data-date-today-btn, fixed behavior.
Added documentation for todayBtn option.
Merge latest master changes to todayBtn branch
Put tfoot after tbody
Add tests for today button functionality
Add missing 'today' translations
Added bulgarian translation
Slovene translation for bootstrap-datepicker
Add a remove function to the datepicker object
inline render ready