Use the number of lines, not currencies
Add exchange rate to available paths

fixes: #717
Merge pull request #721 from stellar/exchange-rate

Add exchange rate to available paths
ActionLink service parses & broadcasts URL params
Open and populate the send form with URL params
Use $location.search() to parse the URL parameters
Don't process action links after the account error
Merge pull request #719 from stellar/send-url-params

Send url params
Move color-pallete above bootstrap include

This allows us to properly override variables used by bootstrap
Moves gateway-list div into gateways.html
Large re-org of the manage currencies system

This commit extracts 3 new controllers, plus one service from what was
the ManageCurrenciesCtrl.  We have now added the AddGatewayCtrl, the
GatewayListCtrl and the GatewayListItemCtrl.  The added service is named
Gateways and is used to actually manipulate your trustlines and wallet.
Merge pull request #711 from stellar/fix-balance-count

Use the number of lines, not currencies
Remove unused var
Fixes busted link in gateway list
Merge pull request #724 from stellar/mc-notifications

Large re-org of the manage currencies system
Show Requires authorization when adding a gateway
Add requires authorization to all balances
styling require auth
Check if gateway currencies require authorization