[xtext-dev] Recent changes

[Sven Efftinge <sven.efftinge@xxxxxxxxx>]

Hi all,

I've moved our code generating the ANTLR grammars to Eclipse.org,  
since that was all clean EPL code developed by us.
Also the call to the ANTLR code generator is now done via reflection  
(i.e. no compile time dependency anymore).
Furthermore the various ANTLR fragments are now asking the user to  
download the ANTLR generator from an itemis website, if it cannot be  
found on the classpath. If the user agrees, the jar is downloaded,  
stored locally, dynamically added to the classpath and executed.
If they don't agree with downloading they are referred to the packrat  
parser alternative.

This change finally allows users to have fun with Xtext versions  
downloaded from eclipse.org, which don't have the non-approved ANTLR  
parser generator.
The reason for this change is that the Eclipse Foundation asked us to  
remove all the download links to the itemis website but instead use  
eclipse.org downloads, which is now possible. :-)

I've installed the nightly builds into a vanilla eclipse and  
everything seems to work nicely.

Sven