Use * for bullets instead of -

Various tweaks to documentation and formatting.

Wrote example for %history Work done as a team by: -Srinivas Vinay A L -Vishnu S G

Wrote examples for %cdmagic Work done as a team by: Anuradha Beetoju Adish Naveen Shravan

Add example for %pwd magic command.

Merge branch 'master' of https://github.com/dwyde/ipython closes gh-203

Merge branch 'kernel-logging' of https://github.com/omazapa/ipython into omazapa-kernel-logging Fixed conflicts arising from updates to using session send instead of directly accessing the sockets. Conflicts: IPython/zmq/iostream.py IPython/zmq/ipkernel.py

Initial docs section on building and uploading docs. Haven't yet checked rst formatting.

Make building docs robust against 'git describe' failing to find a tag name: falls back to 'dev'.

Typo in gitwash docs. See gh-270