bring Jekyll version in line with actual versions on server

[SethTisue]

in this comment @fsalvi says that the server hosting scala-lang.org is running

$ jekyll -v
jekyll 3.1.6
$ kramdown -v
1.11.1

but our Gemfile has

gem 'jekyll', '1.5.1'
gem 'kramdown', '1.8.0'

we should bring these versions in alignment with each other

the short term fix would be to update the Gemfile. (we might need to ask @fsalvi for versions on the other gems listed there.)

a longer term fix would be for the server to generate the site using bundle rather than systemwide gems

an abandoned previous attempt to fix, with discussion: #443

[Blaisorblade]

Question I'm wondering about: wasn't there (in #443) discussion of dialect differences between Jekyll 1.5 and Jekyll 3, associated Kramdown versions, and GFM dialect variants? Is the current output consistent with the later Kramdown version?

[fsalvi]

Versions we have on the server right now:

*** LOCAL GEMS ***
afm (0.2.2)
Ascii85 (1.0.2)
bigdecimal (1.2.8)
blankslate (3.1.3)
bundler (1.13.6)
classifier-reborn (2.0.4)
coderay (1.1.1)
coffee-script (2.4.1)
coffee-script-source (1.9.1.1)
colorator (0.1)
did_you_mean (1.0.0)
execjs (2.6.0)
fast-stemmer (1.0.2)
ffi (1.9.10)
hashery (2.1.1)
io-console (0.4.5)
jekyll (3.1.6)
jekyll-coffeescript (1.0.1)
jekyll-feed (0.3.1)
jekyll-gist (1.1.0)
jekyll-paginate (1.1.0)
jekyll-sass-converter (1.3.0)
jekyll-watch (1.3.0)
json (1.8.3)
kramdown (1.11.1, 1.10.0)
liquid (3.0.6)
listen (3.0.3)
mercenary (0.3.5)
mime-types (2.6.1)
minitest (5.8.4)
multi_json (1.11.2)
mysql (2.9.1)
net-telnet (0.1.1)
oj (2.12.10)
parslet (1.7.1)
pdf-core (0.5.1)
pdf-reader (1.4.0)
pg (0.18.4)
posix-spawn (0.3.11)
power_assert (0.2.7)
prawn (2.0.2)
prawn-table (0.2.1)
psych (2.0.17)
pygments.rb (0.6.3)
rake (10.5.0)
rb-inotify (0.9.7)
rdiscount (2.1.8)
rdoc (4.2.1)
redcarpet (3.3.4)
rouge (1.10.1)
ruby-rc4 (0.1.5)
safe_yaml (1.0.4)
sass (3.4.21)
sequel (4.32.0)
sequel_pg (1.6.14)
stringex (2.5.2)
test-unit (3.1.7)
toml (0.1.2)
ttfunk (1.4.0)
yajl-ruby (1.2.0)

[fsalvi]

The build is now fine with bundler.