change session commit method to return a transcation id if a user and a reason are supplied.
updated amberdb verison.
Merge pull request #182 from nla/commit-txn

change session commit method to return a transcation id for a known user.
DSC-641 serial removed from Form lookup
version number changed to 1.1.162
Merge pull request #183 from nla/bs-dsc-641-serial

Bs dsc 641 serial
further versioning mods
Merge branch 'master' of github.com:nla/amberdb into sc-dsc306-recover
version bump