Clean up VSIX generation scripts.

git-svn-id: http://lufa-lib.googlecode.com/svn@2546 d5102386-fcda-11dd-9fdb-3debd5008f28
Add class driver host mode demo ASF module XML files.

git-svn-id: http://lufa-lib.googlecode.com/svn@2547 d5102386-fcda-11dd-9fdb-3debd5008f28
Make sure the INF driver file is distributed in Atmel Studio projects that require them.

git-svn-id: http://lufa-lib.googlecode.com/svn@2548 d5102386-fcda-11dd-9fdb-3debd5008f28
Ensure the VSIX Python script aborts if the ASF project generator is missing.

git-svn-id: http://lufa-lib.googlecode.com/svn@2549 d5102386-fcda-11dd-9fdb-3debd5008f28
Add and update more Atmel Studio project description XML files.

git-svn-id: http://lufa-lib.googlecode.com/svn@2550 d5102386-fcda-11dd-9fdb-3debd5008f28
Fix invalid module IDs and update VSIX packing script to ensure the database cache files are always updated.

git-svn-id: http://lufa-lib.googlecode.com/svn@2551 d5102386-fcda-11dd-9fdb-3debd5008f28
Update and add missing Atmel Studio project description XML files.

git-svn-id: http://lufa-lib.googlecode.com/svn@2552 d5102386-fcda-11dd-9fdb-3debd5008f28