Adjustments to run on iSeries

Use QSYS2 objects instead of SYSIBM objects to get column names and
procedure parameters.
Clarify UnsupportedOperationException
Additional Adjustments for iSeries

Fix table names qualified by a schema (library)
Acceptance Test Improvements
Remove DECFLOAT
Re-introduce DECFLOAT

JDBC driver issue was remedied by upgrading to newest version.
Create DB2iSeriesEnvironment

Separate Acceptance Tests
Remove iSeries specific syntax from DB2Tests
Revert DB2Environment.

Changes replaced by DB2iSeriesEnvironment
Remove properties files
Add DECFLOAT
Small cleanup tasks

Remove additional properties files and revert DB2Environment
Remove remaining iSeries types from DB2Environment
Whitespace issue
Remove properties file
Remove DB2i tests
Add DB2i tests, this time as symlinks
Rename iSeries classes
Add aliases to AcceptanceTests

Table aliases are required for iSeries, but not for LUW.  They do work
fine on LUW, so these changes are to allow DB2Test and DB2iTest to use
the same suite of Acceptance Tests.
Remove errant comment lines
getInt()?