Add _endt to WidgetBase.php to solve a bug in datetime form widget.
New method WidgetBase::endOfTag() for jForm widgets

Refs #169
Vagrant configuration to test jelix <= 1.6.x
jForms - error decorator should erase list at verification start

After a second try of submit, error messages are still there. It is
annoying if the form is submitted with ajax.
vagrant - updatesrc.sh: reset temp directory at each sources update
Testapp - sample form: fixed a notice when displaying a textarea with input_html widget

input_html does not expect to receive a textarea control. So we
created a specific widget to display a "textarea" control as an input html.
Upgrade markitup to 1.1.14. Fix issue with our jquery version.
Markitup: add the markdown plugin
Forgot markdown set file in the build
jBuildTools: refactor jManifest

New classes jManifestReader and jPhpCommentsRemover
jBuildTools: support of __ALL__ in manifests file

It indicates to take all files in the directory.
Upgrade wymeditor to 1.0.0beta9. It fixes some issues with our jquery version
jForms: choice items (li elements)  have now an id and a class

The class indicates if the item is selected or not: jforms-selected
and jforms-notselected
Update relaxng schema for jForms
Fixed syntax error in jTpl datetime plugin
Vagrant: add missing instruction