Merge pull request #169 from olivierbeytrison/master

Logic was incorrect in cache_add if control:Cache-Merge was set to no
Decode VSA TLVs, too
Remove @version, doxygen seems to parse $id ok

Add callback docs for connection API
Use of 'op' instead of 'operator', and declare it as an FR_TOKEN.

Operator conflicts with a C++ keyword.
Replace credits with a link to the Acknowledgements wiki page
Update COPYRIGHT
Update src/main/version.c
selected array should be reinitialized on each
iteration of i to avoid more than one "selected" operator
in the dropdown.

As posted by Octavio Alvarez.
Don't quote yes/no
Note edir changes
Enable with_ntdomain_hack by default in mschap
Remove dialup admin
Make rlm_krb5 threadsafe.
Remove rlm_acctlog
Add doxygen headers to all module files
Fix some typos
Make sure these are deleted, too
More forgiving way of making CA depend on index && serial

If they don't exist, we create them.
If they do exist, we don't care if they changed.
Add docs
Set sticky bit properly on dir creation