Removed throw SQLException from methods that did not actually throw the exception.
Fixes parsing of server version for locales which
use "." as grouping separator, e.g. German locale.
Merge pull request #190 from golovnin/Utils_parseServerVersionStr_fix

Fixes parsing of server version for locales which use "." as grouping separator

This is a useful fix to my earlier commit f20437b2a7f8140c81215bc104b0f1109be8263a in pull request #169 to use `server_version_num`.
Checking the lower case version of the column name before the upper case
version since it is much more likely to match.  In the default case when
the column sanitiser is enabled then the upper case version of the name
will never match.

This gives a minor performance improvement.
Merge pull request #191 from dmap/findColumnIndex

Minor performance improvement in findColumnIndex
Test batches of mixed statement types and their results

The tests for batches didn't cover series of DML statements well.
Merge pull request #203 from ringerc/test-statement-batch

Test batches of mixed statement types and their results

The existing tests didn't cover Statement batches with multiple different DML statements very well. This improves coverage.
Ignore prepared xacts in other DBs during XA tests

The XA tests used to try to ROLLBACK PREPARED across all DBs and all
users. This could be quite bad if someone was silly enough to run unit
tests as a superuser against a DB that's also hosting something real.
It was also just an irritation if unrelated tests and tools from other
systems used prepared transactions in other DBs.

Ignore prepared transactions from DBs other than the current one.

While we're at it, if there are prepared xacts in the current DB owned by users
other than ourselves then fail the test early as the results can't be fully
under our control
Fixed timezone test as per Tom Lane's suggestion.
Now using Europe/Helsinki as the exemplar.
Merge pull request #186 from cowwoc/master

Removed throw SQLException from methods that did not actually throw the ...