Updated Apple LLDB version to lldb-300.99.0.  Also
updated the build system to support the new Apple
LLDB versioning scheme.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@176662 91177308-0d34-0410-b5e6-96231b3b80d8
Typeo in warning message.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@176664 91177308-0d34-0410-b5e6-96231b3b80d8