add ability to set extra params to oauth2 url endpoints

Co-authored-by: Benjamin Sellers <bsellers@gmail.com>
One-letter typo correction

"use" looks like it should've been "user"
Comment correction
Tiny English correction

A pesky apostrophe was added for the plural "users'"
Minor doc updates.
More whitespace fixes.
Added "securesocial.registrationDisabled" configuration to disable the Registration page.
Currently it uses the views.html.defaultpages.notFound.render to view the Error Page.
Fix typo
Add onPasswordChangeGoTo option

Adds the new, optional 'securesocial.onPasswordChangeGoTo'
configuration property to allow the developer to set which page
the Password Change form should redirect to.

If not set, it preserves the current default option of staying in the
Password Change page.

This option is similar to existing options such as onSignUpGoTo and
onResetPasswordGoTo.
Fixed password change with multiple hashers
add traditional Chinese message file
Fix minor typo in configuration guide.
fix typo in README
Fix typo in readme
Merge pull request #335 from fayimora/master

Fix typo in readme
Merge pull request #333 from fernandoacorreia/readme-typo

fix typo in README
Merge pull request #332 from fayimora/patch-1

Fix minor typo in configuration guide.
Merge pull request #330 from yuchuan1/master

add traditional Chinese message file
Merge pull request #329 from FabienPennequin/passwordchange_multi_hashers

Fixed password change page with multiple hashers
Merge pull request #327 from fernandoacorreia/typo

Fix typo