tiepoint grids in float64
fix unit tests
made dependency to ceres-glayer explicit. Needed by netbeans
Merge branch 'TPG_float64'
trunc pixelpos to int for drawstring
Merge branch 'master' into nestmod

Conflicts:
	beam-core/src/main/java/org/esa/beam/framework/datamodel/TiePointGeoCoding.java
	beam-envisat-reader/src/main/java/org/esa/beam/dataio/envisat/EnvisatProductReader.java