Merge pull request #14 from daanwissing/master

Updated documentation
Unignored bundled timezonecomplete.d.ts file
Moved to typedoc-0.1.1
Upgrade timezone database to 2014f
Published 1.5.2
Add date to release number.
Upgrade tz database to 2014g and publish 1.5.3
README.md typos.
Upgrade TZ database to 2014h, publish 1.5.4
Add badges to README.md
Add badges to README.md
Add badges to README.md
Add Period.isBoundary() method.
Add Duration.greaterEqual() / Duration.lessEqual()
Made DateTime and Duration string constructors robust to whitespace.
Release 1.7.0
Add global min() and max(), add DateTime.min()/max()
improve code coverage
Upgrade TZ database to 2014i
Fix .d.ts file