Remove redundant use of 'tr'

Split ubuntu-install.sh

Allow using pre-installed ipython

If `ipython` is installed, and has a major version >= 3, then use the
installed version. Otherwise install from scratch.

Adding GHC 7.10 to travis tests

set global CM Mode

Minor 710 fixes

move Stdin module to IHaskell

This allows removing the unix dependency for ipython-kernel, and seems
like the right thing to do as the Stdin module is very specific to the
case of running a Haskell kernel.

Generalize ihaskell-plot to work for all Figure types

* Try to fix issue with `cabal configure --enable-tests' on travis.

* Remove upper bounds for version of ihaskell from ihaskell-rlangqq,
  taking cue from the other ihaskell-* packages.

* Fix formatting issues with IHaskell.Display.Plot.

Rename linux-install.sh to ubuntu-install.sh

Fix typo

Correct filename to that which exists in master branch of the repo.