AC-1754 ERXExistsQualifier was doing a global replace of the key in the select statement but should have only replaced once. Without this fix, we cannot reliably chain ExistsQualifiers.

Signed-off-by: Aaron Rosenzweig <aaron@chatnbike.com>

Conflicts:
	Frameworks/Core/ERExtensions/Sources/er/extensions/eof/qualifiers/ERXExistsQualifier.java
Modified table alias matching code to avoid incorrect matches when Postgressql. When trying able alias declarations for t4 and t8, it would also match variable bindings for that had a datatype of int4 and int8 e.g., “?::int8” and “?::int4”
Fix prototype class names to match the naming convention that we changed to, oh, say 5 or 6 years ago. Always good to catch these things early!
setSelectedObjects did not call setSelectionIndexes
Add UUID CopyType, Fix Generics and expectations that destination objects of reference-copied relationships implement ERXCopyable - they don't need to.
Javadoc addition with additional EOGeneration template code, remove unused import.
Fix generics calls that eclipse compiles just fine, but javac won't. Good times, good times.
allow client-side caching of ERXResponse content
Fix JavaDoc - NO CODE CHANGES - Much of ERXKey's java doc was either confusing, or outright wrong. It often described operators as *prepending* the passed in key or current key when the methods actually *appended* the keys. For many operator keys it makes a big difference as to what they do.
Merge branch 'ERXCopyableFix' of https://github.com/amagavi/wonder
Merge branch 'ERXKeyAdditions' of https://github.com/nekesto/wonder
Merge branch 'ERProperties_ClassNameUpdate' of https://github.com/amagavi/wonder
Merge branch 'ERXKeyAdditions' of https://github.com/nekesto/wonder
Revert unintended change to ERXMappingObjectStream.
Merge branch 'ERProperties_ClassNameUpdate' of https://github.com/amagavi/wonder
Merge branch 'ERXExistsQualifier_ReplaceOnce' of https://github.com/amagavi/wonder

Conflicts:
	Frameworks/Core/ERExtensions/Sources/er/extensions/eof/qualifiers/ERXExistsQualifier.java
Move PostgresqlPlugIn to modern architecture (WO 5.4)
Update the version of some Maven dependencies
Format the pom.xml using spaces
[maven-release-plugin] prepare release wonder-6.1.1