Remove release ver from dev docs & fix title

[Mike Scherbakov]

http://docs.mirantis.com/fuel-dev/develop/logical_arch.html

Two issues:
a) there is 3.2 version, while docs are always built from master. Let's remove version number.
b) Fuel 3.2 documentation »<no title> » - there should be a title, not <no title>.

[Ivan Kolodyazhny (e0ne)]

Section 'b' duplicates https://bugs.launchpad.net/fuel/+bug/1263093.

We've got version = '0' and release = '3.2' sections in the docs config. Lets use them to generate correct version for docs. E.g.
version = '3.2'
release = 'master'

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/73762
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=a5fa901e36bc5392e16a5eabe48383295bd3a30e
Submitter: Jenkins
Branch: master

commit a5fa901e36bc5392e16a5eabe48383295bd3a30e
Author: Mike Scherbakov <email address hidden>
Date: Sat Feb 15 06:50:10 2014 +0400

    Removed specific version in development docs

    I suggest to remove the version number completely
    for the following reasons:
    1. Fuel version is tracked in the other repository
       at the moment (fuel-main), so every release would
       require modifications of conf.py file (which
       we we actually doing before), so can always be in
       a situation of 'outdated' development docs
    2. It looks like there is no reason to handle versions
       of development documentation, which always must
       reflect the current state of master. Basically,
       saying that it is 4.0 in the middle of 4.1 release
       is wrong.

    Closes-Bug: #1263642

    Change-Id: Iac3f7afdf2a4bd1949d1d36444d32413ff5d169d