Update 2014-03-06-what-is-cordova-phonegap.markdown

sexytime
Merge pull request #223 from paulirish/patch-1

Update 2014-03-06-what-is-cordova-phonegap.markdown
docs(installation): update android sdk location on windows

Closes [#2426](https://github.com/driftyco/ionic/issues/2426)
update cli-faq
docs(components): add note about has-tabs CSS class

Closes [https://github.com/driftyco/ionic/issues/2310](https://github.com/driftyco/ionic/issues/2310)
docs(components): add note about has-subheader CSS class

Closes [#2422](https://github.com/driftyco/ionic/issues/2422)
add chefsteps post
Update footer links
docs: update for 1.0.0-beta.13-nightly-627
docs(ionic-cli-faq): fix typo on updating cordova

Closes [#2448](https://github.com/driftyco/ionic/issues/2468)
docs: update for 1.0.0-beta.13-nightly-641
docs(components): fix code rendering issue on subheader note
Updated Authentication post on Ionic with latest version of auth0-angular