Started implementation of #47
[Session] session_manager and session handler added.
Added a more generic image function. For convenience we pass the src separated from the remaining list of options.
Added a test for image tag creation with no html_options passed.
Updated README.md and Changelog.md
Added missing references to css and image in README.md
Fixed some typos and changed some syntax on README.md
add favicon with retina support (#10)
Update Contributors.md
Update README.md
Merge pull request #59 from formaweb/favicon

add favicon with retina support (#10)
Merge pull request #58 from pap/issue_47

Started implementation of #47