! fixed a typo

are will be -> are
Merge pull request #114 from davy39/master

Fix rope .gitmodule backslash problem
Merge pull request #112 from joonro/patch-1

! a typo
Merge pull request #115 from davy39/master

Fix some backslashes again
Fixed some Python 3 compatibility issues:
- Changed "file" to "open"
- Changed "str" to "g.toUnicode"
Use version 8.6.9 of asciidoc.py.  It's still not Python 3 compatible.
Removed ckeditor and rope as git submodules.  They will be "git add" ed back soon.
Minor changes to unit tests.
Git added ckeditor and rope.
GTD
Added ZimImportController.  Here is a test script::

import leo.core.leoImport as leoImport

leoImport.ZimImportController(c).run()
Added import-zim-folder command and credited Davy Cottet with the original version of the code.
Fixed a recent botch: ic.importFilesCommand must leave current unchanged.
Removed empty .gitmodules file.  This prevents useless checks in SourceTree.
GTD
Two more smallish improvements to c.recursiveImport.
- Added use_at_nosent keyword option to c.recursiveImport.
- Contract all imported nodes.
Added postcard from Dave Williams to Leo's acknowledgements section.
Added first draft of homebrew formula for Leo 5.0