BIL: Update revision number for BIL
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## References
This version of the components are written based on the following preliminary specs and proposals:
- [**XGL Programers Reference**, 1 Jul 2014](https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/proposals/AMD/Explicit%20GL%20Programming%20Guide%20and%20API%20Reference.pdf)
-- [**BIL**, version 1.0, revision 18](https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/proposals/BIL/Specification/BIL.html)
-- [**IMG's Fixed Function Proposal**, 13 Nov 2014](https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/XGL/accepted/xgl_fixed_function_vertex_fetch_proposal.txt)
-- [**Valve's Loader Proposal**, 7 Oct 2014](https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/proposals/Valve/xglLayers.pptx)
+- [**BIL**, revision 27](https://cvs.khronos.org/svn/repos/oglc/trunk/nextgen/proposals/BIL/Specification/BIL.html)
## License
This work is intended to be released as open source under a BSD-style