Fix filetype snippet to neosnippet
Delete snip.snip
tweak some python's snippets

- in python2, class declaration should inherit other classes or object.
- rewrite a file idiom under the with statement
- fix with-snippets bound by open function
Add codeblock snippet to markdown.snip
Merge pull request #7 from pocke/for_markdown

Add codeblock snippet to markdown.snip
Merge pull request #6 from hachibeeDI/python_snip

tweak some python's snippets
Improve assert snippet
Add lambda snippet
Merge branch 'master' of https://github.com/Shougo/neosnippet-snippets

Conflicts:
	neosnippets/java.snip