Post-receive hook error with Redmine not in root URL

[frasten]

I have Redmine installed in http://myserver/redmine/, and I couldn't see my commits imported into Redmine.
After a bit of research, I discovered that the git variable "hooks.redmine_gitolite.url" was set to http://myserver/githooks/post-receive, and that couldn't work because my Redmine installation is not in the root directory of the webserver.
The culprit is this line in lib/git_adapter_hooks.rb:

hook_url = "http://" + Setting.plugin_redmine_git_hosting['httpServer'] + "/githooks/post-receive"

[ericpaulbishop]

httpServer should include full path to Redmine root. I've updated the README to reflect this.