bijection-finagle-mysql tests are failing in develop

[MansurAshraf]

see https://github.com/twitter/bijection/pull/197

[info] Compiling 1 Scala source to bijection/bijection-finagle-mysql/target/scala-2.10/test-classes...
[info] MySqlConversionLaws:
[info] - Byte
[info] - Short
[info] - Int
[info] - Long
[info] - Float
[info] - Double
[info] - String
[info] - Boolean *** FAILED ***
[info]   GeneratorDrivenPropertyCheckFailedException was thrown during property evaluation.
[info]    (CheckProperties.scala:12)
[info]     Falsified after 0 successful property evaluations.
[info]     Location: (CheckProperties.scala:12)
[info]     Occurred when passed generated values (
[info]       arg0 = ByteValue(127)
[info]     )
[info] - Timestamp *** FAILED ***
[info]   GeneratorDrivenPropertyCheckFailedException was thrown during property evaluation.
[info]    (CheckProperties.scala:12)
[info]     Falsified after 0 successful property evaluations.
[info]     Location: (CheckProperties.scala:12)
[info]     Occurred when passed generated values (
[info]       arg0 = 24501659-11-03 14:26:24.675
[info]     )
[info] - Empty *** FAILED ***
[info]   GeneratorDrivenPropertyCheckFailedException was thrown during property evaluation.
[info]    (CheckProperties.scala:12)
[info]     Falsified after 0 successful property evaluations.
[info]     Location: (CheckProperties.scala:12)
[info]     Occurred when passed generated values (
[info]       arg0 = EmptyValue
[info]     )
[info] - Null *** FAILED ***
[info]   GeneratorDrivenPropertyCheckFailedException was thrown during property evaluation.
[info]    (CheckProperties.scala:12)
[info]     Falsified after 0 successful property evaluations.
[info]     Location: (CheckProperties.scala:12)
[info]     Occurred when passed generated values (
[info]       arg0 = NullValue
[info]     )
[info] ScalaTest
[info] Run completed in 635 milliseconds.
[info] Total number of tests run: 11
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 7, failed 4, canceled 0, ignored 0, pending 0
[info] *** 4 TESTS FAILED ***