removed redundant include in composer example
fixed exceptions classes
added stateless method ToInlineStyleEmailConverter::inlineCSS($html, $css)
twig tag `inlinecss`
updated readme
Merge branch 'twig-tag' of github.com:mente/ToInlineStyleEmailBundle into twig-tag

* 'twig-tag' of github.com:mente/ToInlineStyleEmailBundle:
  removed redundant include in composer example
fixed code examples
fixed bundle relative css loading
fixed circular reference error
for debug mode read file on each render instead of inlining css in template
Merge pull request #1 from mente/twig-tag

Twig tag support