Done necessary config and package changes closes #258
Validate UpdateDataExpressions: enforce that they either specify AllRows or a nonempty Where (but not both)
Added version_bumper to rake, added assembly info task, changed necessary to have every assembly attributed with the correct version closes #337
Adding ability to use Raw SQL in migrations.
Merge remote-tracking branch 'origin/master' into MixedMode
Fix InsertExpression Byte Array property

Fix migration fault, when migration have InsertExpression with a Byte
Array property.
fixed: DEFAULT constraint names not escaped.
Add CurrentUTCDateTime SystemMethod to Postgres
New CurrentUser SystemMethod and implemented for Postgres

Uses the current_user function in Postgres as the the default value.
Implemented CurrentDateTime SystemMethod for MySql

Using the CURRENT_TIMESTAMP function as default value.
Implemented CurrentUser SystemMethod for SqlServer

Added tests for the other SystemMethods as well.
Merge pull request #342 from duereg/RawSql

Adding ability to use Raw SQL in migrations.
Merge pull request #261 from tommarien/MixedMode

Done necessary config and package changes closes #258
Merge pull request #341 from tommarien/AssemblyVersioning

Added version_bumper to rake, added assembly info task, changed necessar...
[TEST]QuoteValue ByteArray
fixed unit tests for default values
Update README.textile

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Update README.textile
Merge pull request #345 of Pathoschild/escape-default-constraint-names

# By Pathoschild
# Via Pathoschild
* pr/n345_Pathoschild:
  fixed unit tests for default values
  fixed: DEFAULT constraint names not escaped.
Merge pull request #346 of daniellee/systemmethods

# By Daniel Lee
# Via Daniel Lee
* pr/n346_daniellee:
  Implemented CurrentUser SystemMethod for SqlServer
  Implemented CurrentDateTime SystemMethod for MySql
  New CurrentUser SystemMethod and implemented for Postgres
  Add CurrentUTCDateTime SystemMethod to Postgres