Making ipython-clojure java 7 friendly

After the last release, users could no longer run ipython-clojure with java 7, due to the usage of java 8 api to encode base64 bytes.
This release makes the encoding code java 7 compatible.

incanter integration

Integrating incanter into ipython-clojure, and implementation of ipython-draw function to draw any instance of JFreeChart inline in notebook.

Example-usage:

(require '[incanter.core :refer :all])
(require '[incanter.stats :refer :all])
(require '[incanter.charts :refer :all])
(ipython-draw (histogram (sample-normal 1000)))

First release with uberjar

First attempted release of the uberjar directly rather than having the user wait on their own machine for the lengthy uberjar process.

Please download it into your desired location, and update ~/.ipython/profile_clojure/ipython_config.py to point to it accordingly.