Adding bower install info 

According to https://github.com/mendhak/angular-intro.js/issues/2
Merge pull request #17 from Apercu/patch-1

Adding bower install info
enable scope parsed imput for autostart intro.

this lets you autostart intro depending on a scope var.
Merge pull request #18 from jonykalavera/master

enable scope parsed input for autostart intro.
add isolate scope
Resolved merge conflicts
Built minified version
README Instructions and code cleanup
Merge branch 'master' into gh-pages
Indentation fix in demo page
Merge branch 'master' into gh-pages