Fix Whoops handler for php7

Fixes using the Whoops handler when using php7

FilterProcessor and arrays

Fixes a bug with FilterProcessor always filtering the first element of a one dimensional array.

RaygunHandler actual fix

• [bug] If RaygunHandler is the first monolog handler on the stack to attempt to handle the message, it will not
  include the relevant information that the current isHandling relies on.
• [fix] Just remove the exception

AWS SDK upgrade

This contains breaking changes, hence the major version bump.

• AWS SDK upgraded from 2.x to 3.x.
• Minimum PHP version increased from 5.4 to 5.5.
• composer.lock now in version control.

1.6.0

• Improved RaygunHandler support for extra data.
• Added RaygunFormatter to best format record data for the Raygun service.
• Added PHP 7 to the travis build.
• Added support for PHP 7 Throwable.

ConsoleFormatter

Adds the ConsoleFormatter