Inability to set lenient mode on JXPath in camel routes

Hi,

If I modify JXPathFilterTest [1] to not include a value:

//filter().jxpath("in/body/name2='James'").
filter().jxpath("in/body/name2").

I receive the following error:

Caused by: org.apache.commons.jxpath.JXPathNotFoundException: No value for xpath: in/body/name2

It seems JXPath has a way to avoid throwing this error by using lenient mode [2], i.e:

context.setLenient(true);

I quickly updated ./src/main/java/org/apache/camel/language/jxpath/JXPathExpression.java to set this value to true and indeed the test case passes. Can we add a way for users to set this option?

Susan

[1] http://svn.apache.org/repos/asf/camel/trunk/components/camel-jxpath/src/test/java/org/apache/camel/language/jxpath/JXPathFilterTest.java
[2] http://commons.apache.org/proper/commons-jxpath//users-guide.html#Lenient_Mode