- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Implement beacon event debugging in athalq.

Add the AR9300 descriptor decoding code.

* Add initial debugging of the interrupt status entry
* Add in the TDMA debugging entries that I added a while ago

Teach athalq about the recent if_ath_alq timestamp format change.

Implement AR5210 descriptor decoding.

Add AR5211 descriptor decoding support.

Add AR5212 frame decoding support.

Implement a basic data decoder for the data produced by if_ath_alq.

This decodes the AR5416 family 11n TX and RX descriptors.