Allow null to be passed as options, so you can specify a callback without options
Show callback parameters in console in examples.html
Make endDate represent the end of the chosen date/range, rather than the start of the last day
Use .show-calendar CSS class to control showing/hiding of calendars
Some misc code cleanup / simplifications
Redo how daterangepicker is open/closed, fixing a couple problems.

- Allows clicking the trigger button/element to hide the picker (like regular bootstrap dropdowns)
- When a Bootstrap dropdown is open, clicking the daterangepicker element should close/hide the Bootstrap dropdown
- When a daterangepicker is open, clicking a Bootstrap dropdown element should close/hide the daterangepicker.
Merge pull request #268 from elasticsales/endofday

Make endDate represent the end of the chosen date/range
Merge pull request #270 from elasticsales/dropdowninteraction

Plays nicely with Bootstrap dropdowns
Merge pull request #269 from elasticsales/cleanup

Code cleanup; use CSS where possible
1.3.4
Merge github.com:dangrossman/bootstrap-daterangepicker

Conflicts:
	bower.json
	daterangepicker-bs2.css
	daterangepicker.js
	index.html
Fixed a couple issues here.
* When viewing a range the left and right arrows move the selected date now.
* Fixed an issue with the original author's use of $.proxy. (each event has a name space with an id)