Pydev 1.3.17 released

Ok, this release is just to iron out some high-priority bugs that have been introduced in the last version.

Most notably, a bug where the pydev package explorer was not working correctly when the project root was configured as a source folder and some fixes in the debugger step return / step over (because of improvements to run those with untraced frames).

Yeap, seems that the saying "Given enough eyeballs, all bugs are shallow" is really true -- I had already been running 1.3.16 for some days here and after the release it took just a couple of hours for those bugs to be reported.

Enjoy!