fixing document click leak

[dioxmio]

$document events were never cleaned

[dioxmio]

the travis build is failing because of this:
bower ECONFLICT Unable to find suitable version for angular
can you fix that? the change is super simple and since my app is mobile I'll like to avoid any leaks :)

[coveralls]

Coverage increased (+0.2%) to 79.504% when pulling f7223a8 on dioxmio:master into ad2a0a9 on jeff-collins:master.

[dioxmio]

fixed it :)

[coveralls]

Coverage increased (+0.2%) to 79.504% when pulling 7f18136 on whitespectre:master into ad2a0a9 on jeff-collins:master.

[coveralls]

Coverage decreased (-37.0%) to 42.339% when pulling cb22f17 on whitespectre:master into ad2a0a9 on jeff-collins:master.

[coveralls]

Coverage increased (+0.3%) to 79.605% when pulling 367826d on whitespectre:master into ad2a0a9 on jeff-collins:master.

[coveralls]

Coverage increased (+0.2%) to 79.572% when pulling 7da165d on whitespectre:master into ad2a0a9 on jeff-collins:master.

[coveralls]

Coverage decreased (-7.6%) to 71.704% when pulling f2eb455 on whitespectre:master into ad2a0a9 on jeff-collins:master.

[coveralls]

Coverage decreased (-7.9%) to 71.474% when pulling 8f7b90a on whitespectre:master into ad2a0a9 on jeff-collins:master.

[coveralls]

Coverage decreased (-7.9%) to 71.474% when pulling 2a57939 on whitespectre:master into ad2a0a9 on jeff-collins:master.