Fix incorrect module ID in the RNDIS device demo ASF.xml file.

git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@2544 d5102386-fcda-11dd-9fdb-3debd5008f28
Add Python script and update VSIX generator rules to pre-generate the Atmel Studio cache files required to make the extension visible.

git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@2545 d5102386-fcda-11dd-9fdb-3debd5008f28