text: Title: Address Werkzeug, Flask, and Python Versions for flask-restx 0.2.0
  Body: Werkzeug 1.0 was released Feb 6th and removes py3.4 support.
  Flask requires Werkzeug >= 0.15.0, so a default install from scratch will pull WZ 1.0
  Flask has moved onto the 1.X series as of mid-2018 but we "allow" 0.8+
  
  Address the large variance and forward motion of flask and werkzeug.
  
  Flask >= 1.0.2 (1.0 and 1.0.1 had bugs. 1.0.2 stayed stable for ayear)
  Werkzeug >= 1.0 (yes, forcing forward compatibility with 1.0 series)
  
  remove py34 
  
  Related to #34 and #35 
  
  