Merge pull request #40 from Eluinhost/master

Open all markdown links in a new window, fixes https://github.com/UltraSoftcore/Match-Calendar/issues/34
generate an app cache to allow for offline caching of app files (all except the API files). cache is checked for updates only if manifest.appcache changes (every build)
Merge pull request #45 from Eluinhost/features/caching

Generate an app cache on build, part 1 of https://github.com/UltraSoftcore/Match-Calendar/issues/44
installation instructions
Merge pull request #46 from Eluinhost/features/caching

Add installation instructions