plots and idealisation fixed

Bugs in plotting and units fixed
Quadrilinear idealisation improved
Tested and compared with N2 method
Bugs in plots fixed

Bugs in plots fixed
Merge remote-tracking branch 'vsilva/master'

Conflicts:
	rmtk/vulnerability/NDP/inputs/consequence.csv
	rmtk/vulnerability/NDP/inputs/edp.csv
	rmtk/vulnerability/NDP/inputs/limits.csv
	rmtk/vulnerability/NSP/DF_method.pyc
	rmtk/vulnerability/NSP/export_fragility.pyc
	rmtk/vulnerability/NSP/fragility_process.pyc
	rmtk/vulnerability/NSP/get_data.pyc
	rmtk/vulnerability/NSP/idealisation.pyc
	rmtk/vulnerability/NSP/inputs/displacement_profile.csv
	rmtk/vulnerability/NSP/inputs/idealised_curve.csv
	rmtk/vulnerability/NSP/spo2ida_method.pyc
	rmtk/vulnerability/common/conversions.pyc
	rmtk/vulnerability/common/damage_to_loss.pyc
	rmtk/vulnerability/common/export_vulnerability.pyc
pyc removed
correct folder system

scripts moved to correct folders
damage_to_loss included

damage_to_loss in the common folder is working as standalone
Merge remote-tracking branch 'ccasotto/master'

Conflicts:
	.ipynb_checkpoints/NDM-checkpoint.ipynb
	.ipynb_checkpoints/NSM_dispersion-checkpoint.ipynb