[imu_aspirin2] make the aspirin2 driver partially compatible with 2.2
pull the baro CS line up...
Merge pull request #369 from paparazzi/v4.2_aspirin2.2_compat

[imu_aspirin2] make the aspirin2 driver partially compatible with 2.2
[rotorcraft] fix FAILSAFE vertical setpoint

This was a regression, thx Michal for catching this!!
The vertical speed setpoint was set to 0.5m/s descent rate, but upon
guidance_v_mode_changed it was set back to zero so FAILSAFE was essentially alitude hold.
[fix][logalizer] add pcre lib to plotprofile

Seems to be needed on Ubuntu 13.04 and maybe some other configurations.
Not exactly sure why it works on most 12.04 systems without that...
[fix] circle-count without rewinding when flying in opposite direction
[ins] xsens_mtig700
[trim] rudder-trim
[typo] sweep is radians now
Merge pull request #441 from paparazzi/v4.2_circle_count_no_rewind

[fix] circle-count without rewinding when flying in opposite direction
Merge pull request #444 from paparazzi/v4.2_trim_yaw

[trim] rudder-trim
Merge pull request #443 from paparazzi/v4.2_mtig700

[ins] xsens_mtig700