handle more cert validation failures

fixes #2344
Be sure that correct version of openssl is used

The full version of openssl is needed (not the limited one).
Fixes GH-2345.
Merge pull request #2346 from alup/master

Check for the proper openssl version
fail man tasks without ronn
re-include man pages in built gem
2.0 is here and we should test on it
ruby 2 needs rspec 2.13, apparently
make 'install' and 'build' tasks depend on 'build'

This patch attempts to fix issue #2121 in Bundler.
trace fetch errors, don't rescue twice needlessly
more authentic SSL cert failure for testing
useless begin
re-handle rubygems requiring openssl
delay rubygems/security so we can catch LoadErrors
1-3-stable should be tested too
can't actually test rg2 on 1.8.7
less 1.9.2 builds is better
allow RG master to fail, because yeah :(
Version 1.3.1 with changelog