Updating the build script for the IE dev mode plugin to require a version number.  Also adding useful fail messages when Wix is not installed.

Patch by: jlabanca
Review by: scottb



git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7230 8db76d5a-ed1c-0410-87a9-c151d255dfc7
2 files changed