[ptp-dev] Updated IRemoteUIFileManager to allow multiple file selection

[Dave Wootton <dwootton@xxxxxxxxxx>]

Greg
I've updated IRemoteUIFileManager and the classes that implement that 
interface to implement a browseFiles() method to allow multiple file 
selection. I've also modified the existing browseDirectory and browseFile 
method to return String instead of IPath and to add an additional dialog 
flags option. I've fixed all references to browseDirectory and browseFile 
to comform to the new interface. I was able to test this with my plugin 
and it looks like this is correct so I committed the changes. 

If this is acceptable to you, is it possible to get a nightly build I can 
download and install in the build environment for my plugin?

Thanks
Dave