Vault Bug Fixes in Version 1.1.2

[lbauer]

1. Vault Clients can now access Vault Servers that are located behind Microsoft ISA Server.
2. Keyword Expansion now works correctly with high-bit characters in ascii files.
3. Keyword Expansion now works for files that contain newline characters in comments.
4. Auto-merge now works with high-bit characters in ascii files.
5. Within Visual Studio, auto-merge conflicts during Get Latest Version operations are now reported to the user.
6. Files no longer appear checked out when they aren't. Previously, this was happening intermittently.