Add Country-dependent holidays

For instructions see language/template.js and calendar.js source code
Simplify holidays calculation structure
Less indentation, please ;)
Merge pull request #80 from mlocati/country-dependent-holidays

Add Country-dependent holidays
Minification
More approptiate events call.
Month/Year cell single click unfold events list
Unfold on click small fix not to unfold empty cells
Minified
Fixed #84
Merge pull request #86 from gausie/fix

Fixed #84
Simplify event calls

Remove useless $.each
Merge pull request #89 from mlocati/simplify-monthview-events

Simplify event calls