* RestExtensionMethodInfo.cs:
* FilteredMediaTree.cs: XPathNodeIterator fix

* DynamicPublishedContent.cs:
* BaseDataType.cs:
* DynamicNode.cs:
* DynamicNodeList.cs:
* DynamicBackingItem.cs:
* usercontrolDataEditor.cs: mono reflection fixes - phase 1

* baseHttpModule.cs: XPath node iterator

* ExamineBackedMedia.cs: XPathNodeIterator fixes

* AssemblyInfo.cs: remove AllInternalsVisible=true so that we have
visibility in mono (!)

* Installer.cs:
* Repository.cs: get path separator to work with '/'

* DeepLink.cs:
* ProgressBar.cs: casing fixes