bumped the version to 1.7-dev
documented the use of composer during installation
documented the remember-me feature
documented Input::headers()
documented Input::headers parameters
Add support for HEAD method in cURL driver

Signed-off-by: Fabien Foulgoc <fbn.fgc+github@gmail.com>
Merge pull request #547 from fbnfgc/feature/curl-method-head

Add support for HEAD method in cURL driver
documented Response::redirect_back()
documented Opauth usage in Auth; added an example controller
removed not needed assumptions section
added catching Opauth exceptions on callback
documented new Arr methods
Update copyright year
Merge pull request #548 from kenjis/fix_copyright

Update copyright year
Highlighted the changes introduced by using the 2.0 Upload package
request/curl: syntax fix
Merge pull request #549 from julesjanssen/1.7/develop

request/curl: syntax fix
Fixed HTML structure in Redis class
Merge pull request #550 from indigofeather/1.7/develop

Fixed HTML structure in Redis class
updated the downloads page