+WikiTeam tools for preserving wikis
rearrange
add something
add mm to Text Processing
adding "cliff" for crafting multi-level command 

adding "cliff" for crafting multi-level command for command-line applications
doc_home: https://cliff.readthedocs.org/en/latest/introduction.html

from dev:
> The cliff framework is meant to be used to create multi-level commands such as subversion and git, where the main program handles some basic argument parsing and then invokes a sub-command to do the work.
add a twitter link
add multiprocessing and threading
Add opengraph lib on Web Content Extracting
Add facepy on Third party APIs
Merge pull request #68 from ellisonleao/master

Add facepy and opengraph libs
Merge remote-tracking branch 'kmonsoor/master'

Conflicts:
	README.md

resolved
fix merge mistake
add guava Fixes #70
add hmap to Imagery
add modoboa to Email
add new section: News Feed
added pexpect to DevOps tools
Merge remote-tracking branch 'radoslawc/master'

Conflicts:
	README.md

resolved
mention Elpy, the Emacs Lisp Python Environment
Added pycallgraph