Rename c++-mode files to work on Windows.

Previously, if you tried to to clone this git repository you recieve the
following error message:

error: unable to create file c++-mode/<sstream> (Invalid argument)
error: unable to create file c++-mode/d_operator<< (Invalid argument)
error: unable to create file c++-mode/operator<< (Invalid argument)
error: unable to create file c++-mode/operator>> (Invalid argument)
error: unable to create file c++-mode/std:: (Invalid argument)
fatal: unable to checkout working tree
warning: Clone succeeded, but checkout failed.
You can inspect what was checked out with 'git status'
and retry the checkout with 'git checkout -f HEAD'
Merge pull request #3 from jschaf/rename-cpp-files

Rename c++-mode files to work on Windows.
fixme
Merge branch 'master' of github:AndreaCrotti/yasnippet-snippets
fix ca-with-comment
reorder python snippets
Merge branch 'master' of github:AndreaCrotti/yasnippet-snippets
more reorganization
Fix link to yasnippet's offical repo
Merge pull request #5 from capitaomorte/patch-1

Fix link to yasnippet's offical repo
remove wrong snippets
add guidlines
put the comment function in the text-mode directory
triple string
new testing snippet
remove extra function
Function/methods with automatic arg docstrings

New templates for function, method and __init__ with automatic
insertion of argument docstrings, keys: fd, md, id.
Merge pull request #6 from jferguson-gnubio/python_arg_docstring

Automatic arguments to Python def docstrings
align '--' in Python docstring arg list

Tweak to function recently added python-args-to-docstring.

Now it will look like this:

def my_func(foo, barbar=0, bazbazbaz = False)
    """

    Keyword Arguments:
    foo       --
    barbar    -- (default 0)
    bazbazbaz -- (default False)

    """
add contributors file