bug fix - mavutil forgot to write its timestamped log.

mavutil can create the timestamped logfile but forgot
to write anything to it. This fix is to get the log file
written.

Signed-off-by: Quy Tonthat <qtonthat@gmail.com>
raise version
Fix detection of PX4 timestamps, increase logdump resolution to milliseconds
PKGBUILD for archlinux AUR
Merge pull request #157 from thomasgubler/archlinux

PKGBUILD for archlinux AUR
Match mavlink_system_t.nav_mode size to allowed size in heartbeat msg (32bits).
Merge pull request #158 from AutoQuad/upstream

Match mavlink_system_t.nav_mode size to allowed size in heartbeat msg (32bits).
added support for DGPS update messages and a 2nd GPS
pymavlink: support DF logs for mavparms.py
pymavlink: fixed text parsing of log file headers
pymavlink: added mavgpslag.py

estimate GPS velocity lag from DF logs
pymavlink: mavtomfile.py generates more MATLAB-friendly m files
pymavlink: fixed timestamps for GPS2 messages
apm: added EKF message

used for testing NavEKF system in SITL
pymavlink: raise version
APM: rename EKF to AHRS2

useful for when EKF is primary and DCM is secondary
pymavlink: handle missing Columns column
pymavlink: raise version
pymavlink: fixed reopen of serial ports
pymavlink: support uppercase bin log files