Updated migrations to support poam->task rename in SQLite.
Updated migrations to support poam->task rename in SQLite.

There appear to be bugs in recent sqlite-jdbc versions that make liquibase choke
on column-adding migrations, but assumig a bug-free driver, these are the changes
we need to get sqlite migrating correctly.

NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet