set minDelay to 0 if larger than our max.

Some sensors data may not be truely ready yet.
Merge pull request #36 from lpotter/nexus

set minDelay to 0 if larger than our max.
[sensorfw] new property on SensorService
add magneticDeviation preoperty so deviationfilter
can use this, if dconf is not available
Merge pull request #35 from lpotter/master

[sensorfw] Add real calibration level to hybris compass sensor.
Merge pull request #38 from lpotter/dec2

[sensorfw] new property on SensorService
bump version to 0.7.3.37
[compilation] Fix compilation on glibc 2.19/gcc 4.8
Merge pull request #39 from faenil/nemomerge_fixes

[compilation] Fix compilation on glibc 2.19/gcc 4.8
bump version to 0.7.3.38
sensorfw-hybris: Build under GCC 4.8
Merge pull request #40 from rburchell/master

sensorfw-hybris: Build under GCC 4.8