Fix improper HTML in base template

base.html includes a self closing div.  This is not valid HTML.

Change-Id: Iac2a26c05d5e0631c7294cd831e384fc223d955a
Closes-bug: #1359969
Exclude .ropeproject from flake8 checks

Change-Id: I4e0bc52de3b251a62f24e89df2db598fbc7e7016
Closes-Bug: #1297016
Merge "Fix improper HTML in base template"
Merge "Exclude .ropeproject from flake8 checks"