Change p2 category name to Remote Application Platform

Bug 399245 - "Rich Ajax Platform" is still in use as group name
https://bugs.eclipse.org/bugs/show_bug.cgi?id=399245
Change remaining left-overs to Remote Application Platform

Bug 399245 - "Rich Ajax Platform" is still in use as group name
https://bugs.eclipse.org/bugs/show_bug.cgi?id=399245
Rebuild client.js

We forget this in RC2:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=398951#c5
Fix vertical alignment for text fields in old IE

Bug 399977 - [Text][Combo] Vertical alignment in text fields not working
in IE7 and 8
Rebuild client.js
Update pom's and configuration files
Update p2 download stats XSL with RAP 2.0 feature names.

This stylesheet is used to put the additional entries into the
artifacts.xml that are required to track p2 installations and downloads.