Updating Chrome, IE, and Firefox plugin installers with glasspanel-on-disconnect feature.

- gwtdmp.crx is updated also, but we should delete it later
- Also deleted old files.

Review by: jat

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7147 8db76d5a-ed1c-0410-87a9-c151d255dfc7
11 files changed