BUG: Commented funcs causing errors and renamed gauss_fit. See details.

Commented out bin_edges_to_centers -- dtype error
Commented out bin_image_to_1D -- dtype error
Commented out find_ring_center_acorr_iD -- dtype error
Renamed gauss_fit to gaussian_fit per changes Li Li implemented
Merge pull request #26 from giltis/broken_yaml_temp_fix

BUG: Commented funcs causing errors and renamed gauss_fit. See details.
update yaml file
add modelaggregator
ENH: Added ModelAggregator VisTrails module

- Also updated yaml file based on my changes to NSLS2.fitting
resolve conflicts
add modelaggregator
Merge branch 'gaussian_fit' of github.com:licode/VTTools into gaussian_fit
Local merge due to conflicts
MNT: Refactor

- moved tests folder from root of repo into vttools/
- putting pieces in place to add coveralls to this repo
- moved fitting tests from nsls2 repo to here
- added test for quadratic model
Merge pull request #28 from licode/gaussian_fit

Model Sum and Model Aggregator
MNT: Local merge due to conflicts
Merge pull request #29 from ericdill/model_aggregator

Merging this because the variable names are better.
Merge remote-tracking branch 'origin/master' into fit_refactor

Conflicts:
	vttools/vtmods/import_lists/modules.yaml
ENH: First attempt at travis & coveralls integration
ENH: Added coveralls & travis badges
MNT: Second attempt at travis
MNT: Travis try 3
MNT: Travis try 4
MNT: Travis try 5