FIX: dynamic resolveMode not being dynamic on branch (IVY-825)

Files:
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/plugins/parser/xml/test-update-withvar.xml (try)
modified: /ant/ivy/core/trunk/src/java/org/apache/ivy/plugins/parser/xml/XmlModuleDescriptorUpdater.java (try)
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/plugins/parser/xml/updated.xml (try)
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/core/resolve/ResolveTest.java (try)
modified: /ant/ivy/core/trunk/CHANGES.txt (try)
modified: /ant/ivy/core/trunk/src/java/org/apache/ivy/plugins/parser/xml/XmlModuleDescriptorWriter.java (try)
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/plugins/parser/xml/test-update.xml (try)
added: /ant/ivy/core/trunk/test/repositories/branches/bar/bar1/trunk/5 (try)
added: /ant/ivy/core/trunk/test/repositories/branches/bar/bar1/trunk/5/bar1.jar (try)
added: /ant/ivy/core/trunk/test/repositories/branches/bar/bar1/trunk/6/bar1.jar (try)
added: /ant/ivy/core/trunk/test/repositories/branches/bar/bar1/trunk/6 (try)
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/plugins/parser/xml/XmlModuleDescriptorParserTest.java (try)
added: /ant/ivy/core/trunk/test/repositories/branches/bar/bar1/trunk/5/ivy.xml (try)
added: /ant/ivy/core/trunk/test/repositories/branches/bar/bar1/trunk/6/ivy.xml (try)
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/plugins/parser/xml/test-write-full.xml (try)
modified: /ant/ivy/core/trunk/src/java/org/apache/ivy/plugins/parser/xml/XmlModuleDescriptorParser.java (try)
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/plugins/parser/xml/XmlModuleUpdaterTest.java (try)
modified: /ant/ivy/core/trunk/src/java/org/apache/ivy/plugins/parser/xml/ivy.xsd (try)
modified: /ant/ivy/core/trunk/test/java/org/apache/ivy/plugins/parser/xml/test.xml (try)