Added half of XOR test
Deleted erroneously placed imports
Fixed nntrainer.py and which scipy minimization function was being used.
Fixed reshaping/unrolling weights in nntrainer.

Fixes #17.
Modified comments in nntrainer.
Updated nntrainer to be passed a minimizer instead of using default.

Fixes #24.
Added OR and AND tests.
Moved initRandParams and changed name of feedforward.

Also changed comments and in the process of updating the
train method in nntrainer. This commit will not pass
tests or compile.
Fixed train and added lots of tests.

Fixes #25, fixes #24, fixes #10.
Added coverage plugin, updated .gitignore and requirements.txt

Run coverage tests using the coverage plugin for nose!
Changed range to xrange.
Updated README.
Fixed commented issues with unused imports/initRandParams.
Merge branch 'train-test'

Resolved Conflicts:
	pymind/components/nnetwork.py
Updated README.
Added TODO file for future discussion.
Modified comment nnetwork and added assertion utility method.
Made activationfn and errfn pluginnable.

Fixes issue #20.
Modified TODO to reflect updates.
Added extra activationfn/errfn error checking.