Backwards-compatibilize 'exclude' and 'include' config tags. Fixes #1109
Pygments does not need to be installed. Fixes #1099 #1119
Merge branch 'master' of github.com:mojombo/jekyll

* 'master' of github.com:mojombo/jekyll:
  Update history to reflect merge of #1116
  Removed space characters in empty lines
Add tests for exclude/include backwards-compatibility
raise things when there's a yaml exception (non-zero exit code
provide access to the layout name so when shit goes down we get the name of the layout which couldn't be processed
Merge pull request #1114 from mojombo/backwards-compatibilize-exclude-include

Backwards-compatibilize 'exclude' and 'include' config tags
Merge pull request #1121 from mojombo/non-zero-exit-on-liquid-exception

Non zero exit on Liquid exception
Update history to reflect merge of #1121
Update history to reflect merge of #1114
Update history to reflect fixing of #1099 and #1119