Merge pull request #38 from alexpukinskis/master

Projectable wall view with hardcoded project
New config option: mode. Set to board or wall for which page to show by default
Cleaning up wall views
Adding client metrics
Commenting out client metrics headers until they are supported for CORS requests in ALM
Initial commit to integrate with client metrics.
More client metrics changes
Some refactoring on the schema mixin
Not delaying wall_controller until project/schema is loaded, as it isn't required for this page
Fixing children field display on PI detail page
Fixing linking of portfolio item detail pages
Added fetch_all_pages_mixin. now you can all collection.fetchAllPages
Using new fetchAllPages function to get projects and iterations for session
Optimized fetching for wall page. Now only makes one query for each level (PI1, PI0, US), plus any others needed to fetch all pages of data.
commenting out client metrics headers again until they are supported in ALM prod
Merge remote-tracking branch 'upstream/master'

Conflicts:
	client/src/views/detail/portfolio_item.jsx