InDesign ICML Writer
Add a simple Emacs Org-mode reader

The basic structure of org-mode documents is recognized; however,
org-mode features like todo markers, tags etc. are not supported yet.
Update README to include info on Org-mode reader
Merge pull request #1179 from tarleb/org

Add a simple Emacs Org-mode reader
Added org-mode to list of readers in cabal description.
Merge branch 'master' of https://github.com/mb21/pandoc into mb21-master
Updated README and pandoc.cabal with icml writer.
Added default.icml to templates.
Templates:  YAML objects resolve to "true" in conditionals.

Closes #1133.

Note:  If address is a YAML object and you just have $address$
in your template, the word "true" will appear, which may be
unexpected.  (Previously nothing would appear.)
SelfContained:  Handle "poster" attribute in "video" tags.

Closes #1188.
HTML writer: Add colgroup around col tags.

Also affects EPUB writer.
Closes #877.
PDF:  Use / as path separators even on Windows.

This seems to be necessary for texlive.
Closes #1151 (again!).