Fix Oracle dialect provider problems with paging, expressions, nullable ids.

Add new tests to Oracle test project.
Make TestHelper strip trailing whitespace for better comparisons.
JoinSqlBuilderTests, OrmLiteQueryTests, SqlBuilderTests, and
TypeWithByteArrayFieldTests now handle parameter string differences.
LoadReferencesJoinTests, OrmLiteQueryTests are not sensitive to ids inserted.
OrmLiteCreateTableWithIndexesTests handles Oracle name munging.
Refactor VistaDB to match current APIs, remove VistaDB4 (+ rename VDB5 to VDB)
remove commented code
Change SqlVerifyFragment to accept IEnumerable
Use the type from the expression over the declaring class of the property
Add latest SS.Text dll
Make FirstMatchingField case-insensitve
Update SS dlls
Merge remote-tracking branch 'upstream/master'
Fixed tests + refactoring
Merge pull request #396 from ilyalukyanov/master

Fixinf VistaDB assembly discovery