Use all caps for variables in section_glance-verify

Change-Id: Ia390bd161cc30507abdfeed507369dc928ee3430
Adds warning for disabling ML2 types

Adds warning that disabling a network type driver and re-enabling it
again later may lead to database inconsistencies under a specific
configuration.

Change-Id: I51a2a1a0114a2b42af37cbbb07d36dd4a298559b
Closes-Bug: 1307133
Merge "Use all caps for variables in section_glance-verify"
Merge "Adds warning for disabling ML2 types"