Brought over JSON file with class list from old docs app.
Modified it a bit, to make it brain-dead easy to render.
Rendering it using simple XTemplate.

Removed old class_search.json file, now using the JSDuck-exported
members.js.  Also using the search algorithm from old Ext3 docs app.

The search now works quite fine.

Currently not using it, so it's just getting on my way.

Going to URL like #/api/Ext-method-onReady will automatically
load Ext class and scroll to the onReady method.

These two replace the previous %M, allowing a bit more flexibility.
Now we can choose whether to use "-" or "#" as separator between
classname and member name.  Still, even more flexible solution would
probably be in order.

Used the new syntax for SDK and made inline links in documentation
finally work.

For example {@link Ext#get} will be converted to something like:

    <a href="Ext-method-get">Ext.get</a>

To look up member types, implemented JsDuck::Class#member_type method.

Docs.History#push now takes the hash part of URL as input.
The classname is also read from URL directly, not from pushstate data.

No more used.

Not using it now, and it's just getting on my way.

When initially loading and when navigating in history.

Removed use of req.standAloneMode.  With new docs app we are always
in stand alone mode, but it's a different standalone mode.

Turned the remaining global functions in functions.js into ClassLoader
class.  Removed the functions.js.

That's the only place it is used.

Instead we are using Ext.Array.forEach.

The template/ dir is expected to contain extjs/ dir where the
whole ExtJS resides.

The main docContent div now contains three divs:

- api-overview : the content on front page
- api-guide : the content of guide
- api-class : the docs of some class

These divs are shown and hidden as needed.

sdk.sh script now also copies over the guides and converts them to HTML
using rdiscount (which should be installed as a dependency for JSDuck).

On front page we add click listeners to all the guide links and load the
guide HTML over Ajax.

That's the script I'm currently using for development.

Added bunch of comments of why certain command line options are passed.

Clicking on member in toolbar menu now correctly scrolls to that member.

Clicking on the Configs/Properties/Methods/Events buttons now
scrolls to appropriate section.

Updated the existing hiding code to be in sync with changed class names.
Also added comments and simplified it quite a bit.