parseIdentity remove csrf token
add a note regarding $repo->isThrottled($input)

94th line, `$repo->login($input)`. 

In fact, it'll extract username or email from the `$input` as throttle identity 

However, `$repo->isThrottled($input)` will just use `$input` as throttle identity.

so, the throttle identity will never match up resulting in login throttling not working.
Update CacheLoginThrottleService.php
add _token and remember to testShouldParseIdentity
Removed comment about using just a part of the input to check if throttled since CacheLoginThrottleService::parseIdentity now removes _token
Updated CacheLoginThrottleService in order to use a more pessimistic approach when parsing  identity
Merge branch 'master' of github.com:wppd/confide into wppd-master

Conflicts:
	src/Confide/CacheLoginThrottleService.php
Merge branch 'wppd-master'