group list of authorities / licences by first letter
fix mobile styling of list pages
fix item count on list pages
allow custom filter attribute, allow multiple items with identical names
Configure to build in TravisCI

- Ruby 1.9.2 and 1.9.3.
- Add default rake task to include jasmine tests.
group authorities by first letter of short name
Test against ruby 2.0.0 in travis
remove IE10 'clear' button on input fields, prevent default escape key input clear in IE10
restore compatibility with IE<=8
fix styling of list pages on IE7
use name instead of raw key code
Exclude licence comments from compiled javascript

@maxfliri
Exclude d3 from optimised build

@maxfliri
Restore dynamic detection of baseUrl

@maxfliri
Precompile and serve d3 in production mode

@pbadenski
@maxfliri