Update Readme: We are running with ruby 2.1 as well.
Update Readme: Callback caveats.
Fixes event_fired / event_failed only looking at public methods

Sometimes it's more convenient to implement these methods as protected /
private for records to hide them from the public API. Since we're using
send we should be looking at protected / private methods as well.

On Ruby 2.x this is worse because responds_to? returns false for
protected methods.
Merge pull request #125 from darkside/feature/fix-event-fired-failed-responds-to

Fixes event_fired / event_failed only looking at public methods
Update docs badge in README

Update the URL of the docs badge to include it from inch-ci.org instead of inch-pages.github.io (the former being the successor of the Inch Pages project).

[ci skip]
Merge pull request #126 from rrrene/patch-2

Update docs badge in README
Allow passing non-Proc callables as guards
Merge pull request #130 from GoodGuide/allow-non-proc-callable-guards

Allow passing non-Proc callables as guards
Bump version to 0.1.13.
Make reading state work for non-AR models (by Randy Schmidt [@r38y]).
add can_execute_event? to check against guard clauses
Merge pull request #128 from musicglue/can_execute_event

add can_execute_event? to check against guard clauses
Fix typo, too many l in "calllback" word
Merge pull request #132 from fuksito/master

Fix typo, too many l in "calllback" word