Implemented new server-side password validation, to be more flexible.
Added jQuery plugin to show password improvement tips.
Some password strength minor bugfixes.
Merge branch 'master' into password-strength-improvement

Conflicts:
	mokuji/components/account/Json.php
	mokuji/system/core/Security.php
Fixed 2 bugs with $.PasswordStrength().

* No SQL calls when installing.
* Trigger manual keyup event for some password managers.
Implemented password strength on several locations.

* Password forgotten (new password)
* Account::user_profile
* Update::install_admin
Updated documentation.
Merge branch 'master' of github.com:Tuxion/mokuji