Merge remote-tracking branch 'upstream/master'
Removes mention of isMandatory in list of d2wKeys.

This component does not honour the isMandatory key, as discussed on
the mailing list in 2010, 2013.

http://permalink.gmane.org/gmane.comp.web.webobjects.wonder-disc/15336
Don't mix component formats
method name spelling fix
Merge pull request #424 from paulhoadley/d2w-javadoc-fix

Pulls 'isMandatory' key (which is no longer honoured) from the Javadocs.
Merge pull request #470 from freddietilley/master

Don't mix component formats
add BigDecimal Constructor
only format changes
add BigDecimal addSet
fixing some whitespaces No Code change
fix error after Name changes
add whitespace
fix Warning
more BigDecimal Support
fixed divSet for better calculation

Thanks to 'darkv'
add BigDecimal Return
add percent Calculation
Merge pull request #471 from ishimoto/ERXMoney

already test it for a few hours, should work
Extract the construction of count distinct expression into its own method

This is a small refactoring (no changes in behavior) allowing concrete implementations of ERXSQLHelper class to provide their own mechanism to construct the SQL expression to count distinct rows. The default implementation doesn't support composite primary keys. Concrete implementations of ERXSQLHelper may override the `sqlForCountDistinct` method to change this behavior according to each database syntax.
Add support to count distinct rows based on multiple columns using Postgres