pelicun v2.0.0

• migrated to the latest version of Python, numpy, scipy, and pandas
  see setup.py for required minimum versions of those tools
• Python 2.x is no longer supported
• improve DL input structure to
  = make it easier to define complex performance models
  = make input files easier to read
  = support custom, non-PACT units for component quantities
  = support different component quantities on every floor
• updated FEMA P58 DL data to use ea for equipment instead of units such as KV, CF, AP, TN
• add FEMA P58 2nd edition DL data
• support EDP inputs in standard csv format
• add a function that produces SimCenter DM and DV json output files
• add a differential evolution algorithm to the EDP fitting function to do a better job at finding the global optimum
• enhance DL_calculation.py to handle multi-stripe analysis (significant contributions by Joanna Zou):
  = recognize stripe_ID and occurrence rate in BIM/EVENT file
  = fit a collapse fragility function to empirical collapse probabilities
  = perform loss assessment for each stripe independently and produce corresponding outputs

v1.2

• support for HAZUS hurricane wind damage and loss assessment
• add HAZUS hurricane DL data for wooden houses
• move DL resources inside the pelicun folder so that they come with pelicun when it is pip installed
• add various options for EDP fitting and collapse probability estimation
• improved the way warning messages are printed to make them more useful