Merge pull request #65 from McFoggy/2.2

Adding continuous integration using travis-ci.org
add travis-ci badge to Readme.md
Pressing arrow keys on BigDecimalField should repeat increment/decrement until mouse is released
Revert "Pressing arrow keys on BigDecimalField should repeat increment/decrement until mouse is released"

This reverts commit 07378358ca1d1a98164ab888f38e42624cbd58ff.
Pressing arrow keys on BigDecimalField should repeat increment/decrement until mouse is released.
Added delay of 500ms and reduced click rate to 50s to repeated mouse
click on increment and decrement button
Added option to enable/disable deselect for date picker
SFW-20978 added disable/enable deselect mode in datepicker, disabled deselect for our datepickers
Merge pull request #68 from mbulthuis/2.2

Added option to enable/disable deselect for date picker
minor things
+allowNull
minor fix
react better to changes in locale
better handle locale switching
+disabledCalendars
+highlightedCalendars
changed highlighed / disabled API to match Agenda's
added styles for zoom buttons
new simple sample
Ability to hide the weeknumers (-fxx-show-weeknumbers:NO;)