Pyhdb

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- Truncate (instead of round) microseconds to milliseconds in time or timestamp columns.

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- Accept PARAMETERMETADATA part while handling select response
- Allow Decimal in prepared statements

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- Raise IntegrityError on unique constraint violation

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- Added LOB_WRITE requests allowing to insert or update LOBs of arbitrary size
- Added support of SELECT FOR UPDATE statements
- Added support of Geometry types
- Added support for procedures with resultsets
- Fixed and improved Real, BigInt, Time and Date types
- Code cleanup and refactoring
- Renamed logger form receive to pyhdb
- Reactivated unit tests which were deactivated by accident
- Added pyhdb.connect.from_ini(<inifile>) to connect to db with parameters from properly formatted ini file

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- added support for packing timestamps into payload
- added support for casting integers and floats provided in string format for packing into payload
- added support for casting floats and integers into strings where string is requested for payload

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- fixed nasty bug when looping over long list of result rows from select statement