Only install/use pycurl2 if pycurl version is < 7.19.3 #40
Description
pycurl 7.19.3+ handles Unicode Strings reliably. This has not been my experience with pycurl2. Also pycurl seems to now be well maintained. As a result, human_curl should only install/use pycurl2 if pycurl is not available or pycurl version is < 7.19.3.