MONDRIAN-1285 - ranking a double value within a list of integers
MONDRIAN-1285 - only running tests if steelwheels is available
Fixes some issues with SQL server and some false positive failures in SQL server's dialect tests.

Conflicts:

	src/main/mondrian/rolap/RolapAggregator.java
	src/main/mondrian/spi/impl/MicrosoftSqlServerDialect.java
	testsrc/main/mondrian/test/DialectTest.java
mondrian1325: cast exception for min/max of integer measure
Conflicts:

	testsrc/main/mondrian/rolap/aggmatcher/NonCollapsedAggTest.java