Added feature Reading Time
  - Enabled by default, to disable set reading_time to false in _config.yml
  - This feature has been tested in GithubPages to see an example visit: http://edgarsandi.github.io
added the reading-time styles in css
added the js code to reading-time
added words_per_minute in configuration
changed pages to use the number_of_words liquid filter
removed jquery used to calculate reading-time
changed the reading time calc to use the liquid features
merge with original repository
removing duplicated code
Move placement of reading time and style to better fit theme design
Document new reading time variable in _config.yml
Move reading time on pages