v1.4.0

• added useraccounts:ionic to the suite! (Thanks @nickw!!!)
• updated useraccounts:semantic-ui to [email protected] (Thanks @lumatijev!!!)
• added onLogoutHook to be able to run code (custom redirects?) on AccountsTemplates.logout (see #191)
• added onSubmitHook among configuration parameters to be able to run code on form submission (might be useful for modals! see #201 and #180)
• submission button get now disabled also during fields (asynchronous) validation
• enforceEmailVerification now works also with username login (fixed #196)
• better IE compatibility (see #199)
• better input field validation flows to recover from previous errors (see #177)
• updated dependency to softwarerero:[email protected]
• new Contributing section among docs
• a few improvements and typo fixes for README.md