0.14.5

Fixed bugs:

• Code blocks in docs not rendered #1258
• Unable to install on windows #1254

Closed issues:

• Remove support for Python 2.7 & 3.5 #1120

Merged pull requests:

• add json() method to FastHttpLocust (to match regular HttpLocust) #1259 (cyberw)
• docs: remove the description of port 5558 #1255 (orisano)
• Remove six and other 2.7 compatibility code #1253 (cyberw)