use the emty array constant instead of nil
foce travis-ci into using JDK 6 for now
make the test green on AR >= 4.0
skip transaction tests on ms-sql, for some reason they hang - INVESTIGATION NEEDED
"optimized" quote_name_part (MS-SQL) in Java + avoid bytes copying in quoteCharWith
re-build jar
Throwing exceptions in the hot path results in slow code
some other minor performance improvements to mssql type_cast

suggested by @tduehr
avoid regression with :boolean not being type casted correctly + align coding style
- this partially reverts the previous commit c5a67fde0e1db66ea80c8483a
these new tests fail (but it's not our fault) on AR < 3.2
slipped one - makes no sense to run the trigger tests on AR < 3.2
skip testing trigger with prepared statements on AR 3.1
fill-in more History that is already in
update + test with latest release-candidates for AR 4.x
[mysql] initial hacks to allow running with non-official JDBC driver
allow running tests using `rake test_mysql DRIVER=MariaDB`
correct git ref matching in Gemfile
better jdbc- gem summaries + READMEs
[mysql] adapter.version (server version) that works with non-official driver(s) as well
[postgres] quote fix failure with ColumnDefinition on AR 4.0.6.rc2