adding ABOUT_ME, SHOW_ABOUTME, and AVATAR options
Merge branch 'aboutme' of https://github.com/toumorokoshi/pelican-bootstrap3 into toumorokoshi-aboutme

* 'aboutme' of https://github.com/toumorokoshi/pelican-bootstrap3:
  adding ABOUT_ME, SHOW_ABOUTME, and AVATAR options

Conflicts:
	README.md
Consolidated ABOUT_ME settings
Clarifed ABOUT_ME in README