upgrade jekyll2
removing to deprecated option
Merge branch 'jekyll2'
bundle update
reverted d88491ab38cfdb2360d269475781f83ed8116a94
Added Tropical Ruby 2015 CFP news (en).
Merge pull request #888 from guiocavalcanti/tropicalrb-2015

Added Tropical Ruby 2015 CFP news (en).
Rewrap news post (en)
Translate tropicalrb 2015 CFP (zh_tw).
Translate CFP for Tropical Ruby news (es)
Fix link
Merge pull request #889 from dabit/master

Translate CFP for Tropical Ruby news (es)
Small fixes (es)
Tropical ruby 2015 (ru)
Merge pull request #890 from gazay/tropical_ruby

Tropical ruby 2015 (ru)
Fixed a spelling mistake in an old news (fr).
Translate the 5 last news (REXML & SSL) (fr).
Fix link (ru)
Merge pull request #876 from GRoguelon/rexml_ssl_tls

Translate in french the 5 last news (REXML & SSL).
Several fixes in recent news posts (fr)