.gitignore: added SlickEdit project wildcards
.gitignore: added SlickEdit project wildcards

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/5748003

git-svn-id: http://src.chromium.org/svn/trunk/src@70803 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b4919790b0af60814e63e06562512df41a35fbbe
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser