Merge branch 'hotfix/1.10'
Merge branch 'release/1.11'

* release/1.11: (40 commits)
  Update changelog
  Bump version to v1.11
  Add comment to readme saying that my repo is likely to be more up-to-date than fuel's fork
  Talk about forum thread in readme
  Change defaults for min, combine, show_files
  Document the new functions
  Add functions to set group options on-the-fly
  Correct example syntax for inlining
  Make add_group_base accept a single string dep, and document this
  Document the dependencies
  resolve_deps was enabling groups that should have been disabled
  Add functions to add deps to groups
  Create an array of rendered groups, and use it to prevent us from rendering groups both as a dep and as normal. Also enable disbled groups when they're deps.
  Move dep-checking to its own function, and check for circular references.
  Deps can now be defined and processed.
  Document the changes in the readme
  Deprecate the  option to render(), and add it to the group config instead
  Document new inline behaviour in the readme
  Css uris are rewritten, even if the file is inline and isn't minified
  Make 'inline' a group attribute, rather than something passed to Casset::render()
  ...
Add note about using  with add_group() in 'Extra Attributes'
Changed from JSMin to yuicompressor (required yuicompressor in APPPATH/vendor
Updated config and added to bootstrap
Any non-string asset names will be ignored
Remove $attr because is not defined yet.

This was introduced in 4963e50d: Fix HTML5 CSS <link> and <style> tags by
chrismeller.

Fixes #12
Rewrite CSS URIs when inlined and not minified
Put the only call to Cssurirewriter inside load_file
Merge branch 'feature/css_inline_nonmin_urirewrite' into develop

* feature/css_inline_nonmin_urirewrite:
  Put the only call to Cssurirewriter inside load_file
  Rewrite CSS URIs when inlined and not minified
Update JSmin and CSSmin libraries to the latest stable versions from their master.

Commit used is 6969982b161e32c9a78bbe0c54560defa3a3b0b7
https://github.com/mrclay/minify
Fix bug in add_deps().

Array of new deps was being pushed into existing deps as a single item.
Now we merge the two, while removing duplicates.

Closes #13
Bump version to v1.12
Update changelog
Merge branch 'release/1.12'

* release/1.12: (37 commits)
  Update changelog
  Bump version to v1.12
  Fix bug in add_deps().
  Update JSmin and CSSmin libraries to the latest stable versions from their master.
  Put the only call to Cssurirewriter inside load_file
  Rewrite CSS URIs when inlined and not minified
  Remove $attr because is not defined yet.
  Any non-string asset names will be ignored
  Add note about using  with add_group() in 'Extra Attributes'
  Another readme typo
  Fix small readme typo
  Remove typo in readme
  Remove trailing whitespace
  Change a ton of private methods to protected
  Add option prep method so group options are passed through to the add_group method.
  If set_group_option is used with all groups ('*'), then change the default.
  Create the global groups on initialisation, if it doesn't exist.
  set_group_option() will throw an exception if the named group doesn't exist.
  Add new function to tell whether a group exists.
  $<param>_default vars have been removed, in favour of an array of default options
  ...
Merge branch 'release/1.12' into develop

* release/1.12:
  Update changelog
  Bump version to v1.12
Add 'Thanks' section to readme
Detail exactly how to contribute in readme
Add quickref
Add link to quickref from readme