bump version number to v1.5.2 

Merge pull request eshaan7#5 from vBLFTePebWNi6c/patch-1 Decode process output to "utf-8" instead of "ascii"

decorators functionality. Bump to v1.5.0 

Bump version to v1.4.3. Update docs 

backward compatabiliy fixes. Works for python 3.6 now. 

Bug fixes | POST multi-part has an updated API 

bump to v1.4.0 

user can now define a callback fn, use signals, custom save fn. See e… …xamples/ for code

Better Logging, memory management | added result_url to response 

bump pkg version