Replacing some getChildNodes() calls


Conflicts:
	src/main/java/org/apache/jcp/xml/dsig/internal/dom/DOMKeyInfo.java
	src/main/java/org/apache/jcp/xml/dsig/internal/dom/DOMSignatureProperties.java
	src/main/java/org/apache/jcp/xml/dsig/internal/dom/DOMXMLObject.java
	src/main/java/org/apache/xml/security/keys/KeyInfo.java
	src/main/java/org/apache/xml/security/stax/ext/AbstractOutputProcessor.java
	src/main/java/org/apache/xml/security/transforms/params/XPath2FilterContainer.java
	src/main/java/org/apache/xml/security/transforms/params/XPath2FilterContainer04.java
	src/main/java/org/apache/xml/security/transforms/params/XPathContainer.java
	src/test/java/org/apache/xml/security/test/signature/InvalidKeyTest.java
	src/test/java/org/apache/xml/security/test/stax/signature/SignatureCreationTest.java

git-svn-id: https://svn.apache.org/repos/asf/santuario/xml-security-java/branches/1.5.x-fixes@1602385 13f79535-47bb-0310-9956-ffa450edef68