Reduce height for "Description" text areas

Textarea widget defaults to 10 rows which seems unnecessary.
Reduced to 4.

Change-Id: I03cfd0087ffb1225c6ce893d98481a9a66e2ab3c
Closes-Bug: #1370271
Updated tenant_id to project_id in policy.py

Comments were referring to tenant_id where code says project_id

Closes-Bug: #1371017

Change-Id: I72f6c092f405fe130ca2c7430b7c00b70fb4abc8
Merge "Reduce height for "Description" text areas"
Merge "Updated tenant_id to project_id in policy.py"