execution of accesskey="E" on a build instance results in "page not found"

steps

1. open a build instance
2. hit ur browsers hotkey for edting
   -> page not found

cause

looking @ the generates HTML the fault is obvious:

  <a class="hidden" href="/build/admin/edit/editBuildConfiguration.action?buildKey=ECC-ECC21-18" accesskey="E">Edit Plan</a>

suggestion

i like the possibility to directly edit the config from a build instance and hence i would not want this to be dropped. after all this is very useful when debugging builds.
hence, just fix the link in case of build instances.