Add link_or_copy to IPython.utils.path
Use link(2) when possible in nbconvert
Fix a couple typos
py3 doesn't have nested, py2.6 doesn't have multiple context managers
Organized reveal's templates.
Add reveal/*.tpl path to setupbase.
Fixed typo in reveal/*.tpl path in setupbase.
Fixed path in setupbase, again...
Add ENOLINK constant
Merge pull request #3751 from wolever/link-if-possible

Use link(2) when possible in nbconvert
Merge pull request #3770 from damianavila/group_reveal

Organizing reveal's templates.
Deprecate flavor-level subclasses
Part way through adding 'flavor' support
Reflection of renames in template references
Added aliases to nbconvert commandline
Small bugfixes
Update exporter tests names
Updated tests to try flavors
latex.tplx->latex_basic.tplx & test changes
Fixed tests