TreeNode#to_s (from the rubytree gem) is broken. It is implicitly called by
Shoulda on 1.9 only. As we don't actually need it, we just remove the method.

The bug is reported at http://rubyforge.org/tracker/index.php?func=detail&aid=29435&group_id=1215&atid=4793

This is not only a wee bit faster (yay!) but also allows use to deal with
frozen strings and doesn't change content which might inadvertently be saved
later on. And it fixes some broken tests on Ruby 1.9 :)

[#725] Compatibility check for jQuery availability (unstable)

This was added to unstable with ab2856b5 and will be released with Chili 3.0

In the current master a.k.a. ChiliProject 2.x, there is
no jQuery loaded by core.

This be removed with complete macro removal.

This changes how the liquid integration works. It now integrates the Textile
conversion step. This was necessary because if you first convert the snippets
inside of loops and conditionals from Textile to HTML, you loose some
important context information which is required to e.g. build proper lists in
textile.

We expect the standard case that Liquid tags return Textile markup instead
of HTML. Thus, we can convert the final textile markup to HTML as a very last
step.

To allow existing and new macros (or tags) to return HTML for advanced usage,
we save their respective output into the context and put a placeholder string
into the generated markup. After the transformation to HTML, we insert the
previously generated HTML into the string using search+replace in
lib/chili_project/liquid/template.rb. Tags have to be registered using
:html => true for this special treatment.

The current view's instance variables are sent to liquid dynamically

#672 Allow queries to include subproject issues

Merge branch 'ticket/unstable/263-new-layout-ready' into unstable