Start playing around with LaTeX representation for ipython notebooks
support both sympy and ipython latex output
preliminary implementation of latex output for equations (using sympy's latex facilities)
include units and flags in LaTeX representation
Convert "u" prefix to "\mu" for latex display
Implement LaTeX representation of explicit state updaters
Use sympy import more sensibly
First attempt at a pretty output for NeuronGroups in the ipython
notebook
Treat static equations and parameters correctly for latex output, also
rename SingleEquation.eq_type to SingleEquation.type
Merge branch 'master' into notebook_integration

Conflicts:
	brian2/groups/neurongroup.py
Merge remote-tracking branch 'origin/master' into notebook_integration

Conflicts:
	brian2/equations/equations.py
	brian2/groups/neurongroup.py
Add missing import and improve LaTeX display for equations.
Fix HTML display for NeuronGroup.
Document guidelines for repr, str, etc.
Add __repr__ methods to core objects.
Add some more __repr__ functions
small additions to the HTML/LaTeX display of Equations and NeuronGroup
Merge remote-tracking branch 'origin/master' into notebook_integration

Conflicts:
	brian2/stateupdaters/explicit.py
Merge pull request #28 from brian-team/notebook_integration

LaTeX representation for Brian objects / ipython notebook integration