Check angular is loaded before broadcasting fbinit

- Check if (FB) is defined in facebook-reward-controller
in case we didn't broadcast fbinit
Support reward_error in client
Merge pull request #526 from stellar/reward-error

Support reward_error in client
get rid of FB check
add typeof check
add loading text
Merge pull request #525 from stellar/angular

Check angular is loaded before broadcasting fbinit
Ensure max attempts prevents undefined config loop
Wait an additional second on each wallet retry
Default max attempts in the controller body
Provide enough info to remove the user record
Merge pull request #527 from stellar/registration-failure

Registration failure
rpAmount filter changes

Add a floor option to the rpAmount method to ignore flooring. Also increase max_sig_digits to 6 to be more inline with Stellar proposed minimums.
Merge pull request #529 from justinhernandez/rpamount-optional-flooring

rpAmount filter changes
Filter for new reward types coming in