Stuff like: "Some string\
continues here".

It's rarely used, but I encountered it in some Jasmine tests.

Class tree bugfix

The number of static tabs now depends on if --welcome, --guides,
--videos and/or --examples options were specified.  Only the classes
tab is always on.

Also remove the <tpl> tag... leftover from JS version.

comment-to-markdown formatting has to be done after writing source files,
because doing the formatting in parallel breaks links between doc-objects
and source files.

Again makes things quite a bit faster as we don't write as big files.

Created ClassFormatter for doing this.

This speeds things up about 2x.

Remove code for using phantomjs entirely.

Previously refreshing the page while example tab open, would close all other tabs.
Now first loading all the tabs and only after that performing history navigation.

Clearing the page first and then loading the example.

Created separate examples.Container class.

Regression caused by switching to deferred rendering of all tabs.

Good news: no more duplicated code for rendering class docs.

Bad news: It's really-really slow at the moment.

Previously when switching from guide tab to class tab the examples
in first tab would get set to zero height.  Now only recalculating
the heights of examples in the tab to which we switch to.