Fix or suppress errors in tests

enable TestRandomSQL on non-memory databases

TestKillRestartMulti: A map named undoLog-1 already exists

we should probably just delete this 1.1 upgrade stuff

in pagestore mode we scale it by the size of available RAM

unused methods removed
min0r refactoring

otherwise we're not actually testing what we want to test, and it's darn hard to track down bugs in the test code

Assorted minor changes

Undo log split to reduce contention

External authentication with datasource issue

update

This is bad, it opens up the whole new can of warms and need to be dealt with separately

Preserve original exception in CreateTable and AlterTableAddConstraint.

TableLink: column names are always case insensitive for MySQL

make beforeWrite() to call commit() instead of tryCommit() in case of unsaved memory churn

Address code review comments.

TransactionMap::sizeAsLong() optimized - temp map eliminated

1177 recover leak