add support for routes to open as root view controller of navigation controller

Mapped view controllers can now be opened and set as the root view
controller of the navigation controller.
correct mistake in documentation
add unit test for opening as root of navigation controller
Merge pull request #16 from angelodipaolo/root-view-controller-option

add support for routes to open as root view controller of navigation controller
fix openAsRoot test to include root router option
Merge pull request #17 from angelodipaolo/root-view-controller-option

fix openAsRoot test to include root router option
fixed error if explicitly define initWithRouterParams
Merge pull request #18 from aelam/master

fixed error if explicitly define initWithRouterParams
Fix Xcode 5-introduced "Undeclared selector" warning, and a regression. fixes #19
version++
Update README.md
Merge remote-tracking branch 'root/master'