docs(CONTRIBUTING): Add a note on finalizing a PR

Closes #248

Brief details on how to rebase/squash commits on a PR
Note that Github shows the number of commits on a PR
feat(rxFeedback): Custom sendFeedback functions.

This a required feature before any automation can be written for rxFeedback.
Merge pull request #484 from rackerlabs/i248_pr_squash_process

docs(CONTRIBUTING): Add a note on finalizing a PR
feat(rxBreadcrumbsSvc): Add a `setHome` method

Closes #231

This PR does two things:

 1. A new `rxBreadcrumbsSvc.setHome()` method to change the first
 breadcrumb
 2. For the `ghPages` environment, it uses that method to give us the
 right URL at the top of the app
Merge pull request #476 from rackerlabs/rx-feedback-custom-sendFeedback-fn

feat(rxFeedback): Custom sendFeedback functions.
Merge pull request #487 from rackerlabs/i231_breadcrumbs_home

feat(rxBreadcrumbsSvc): Add a `setHome` method
chore(version): v1.1.1 [skip ci]
fix(rxApp): Fix #446; demo app nav not highligting when active
Merge pull request #458 from rackerlabs/446-active-url

fix(rxApp): Fix #446; demo app nav not highligting when active
chore(version): v1.1.2 [skip ci]