Rollback and minor fixes

#10034 slash removed
# 10033 Fixes furl when discuss as root of site

Also fixes one typo on install table name
fix wrong notification_new_post_chunk value

fix for http://tracker.modx.com/issues/9528
Merge pull request #11 from christianseel/patch-1

fix wrong notification_new_post_chunk value
#10 Fixes furl in email
#10 implemented

This was actually a "bug". The path should have had the forward slash
trimmed away but it was missing the variable where to put back the
trimmed value.
Merge remote-tracking branch 'origin/develop' into theme-modx