Removed picloud code
Updated heston notebooks
Syncing to master enthought/pyql
Merge remote-tracking branch 'upstream/master'

Conflicts:
	examples/notebooks/HestonSimulation.ipynb
	examples/notebooks/heston_calibration.ipynb
Merge branch 'master' of https://github.com/phenaff/pyql
- Updated to pandas 0.10
- Fixed all notebooks
- Added rate utility functions in mlab
Script equivalent of Libor notebook
New utility functions
Added test of pandas functions used in notebook
Added scipy install in Travis
Removed dependency on scipy
Test corrected for test_notebooks
Updated notebooks
Clean up to trigger Travis build
Merge branch 'master' of https://github.com/enthought/pyql
Merge branch 'notebooks/fix' into develop
- Updated to pandas 0.10
- Fixed all notebooks
- Added rate utility functions in mlab
examples/make_zc.py superseded by scripts/Libor_to_zc.py
Superseded by scripts/Download_USD_LIBOR.py
Superseded by scripts/Libor_to_ZC.py
Added comments