Add most extensions generated by VS2010 to .gitignore.
Add most extensions generated by VS2010 to .gitignore.

VS2010 generates .xml files, we can't add that to .gitignore.

Add flash symbols too.

BUG=
TEST=


Review URL: http://codereview.chromium.org/6793022

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@80352 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser