Merge remote-tracking branch 'origin/develop' into field-of-view

checkstyle.xml

src/changes/changes.xml

src/main/java/org/orekit/errors/OrekitMessages.java

...n/measurements/gnss/AbstractDualFrequencyCombination.java

...measurements/gnss/AbstractSingleFrequencyCombination.java

.../orekit/estimation/measurements/gnss/CombinationType.java

...ekit/estimation/measurements/gnss/GRAPHICCombination.java

...estimation/measurements/gnss/GeometryFreeCombination.java

...timation/measurements/gnss/IonosphereFreeCombination.java

.../estimation/measurements/gnss/MeasurementCombination.java

...tion/measurements/gnss/MeasurementCombinationFactory.java

...mation/measurements/gnss/MelbourneWubbenaCombination.java

...t/estimation/measurements/gnss/NarrowLaneCombination.java

...timation/measurements/gnss/PhaseMinusCodeCombination.java

...kit/estimation/measurements/gnss/WideLaneCombination.java

...n/java/org/orekit/geometry/fov/EllipticalFieldOfView.java

src/main/java/org/orekit/gnss/CombinedObservationData.java

...main/java/org/orekit/gnss/CombinedObservationDataSet.java

src/main/java/org/orekit/gnss/HatanakaCompressFilter.java

src/main/java/org/orekit/gnss/MeasurementType.java