java7 and unnecessary check for null
renamed private method
java7/removed todos
removed useless sourceProductSelector
loading also outputFile from parameter file
not removing properties but setting them to transient
[BEAM-1648] Add processing time to metadata
[BEAM-1648] Add processing time to metadata

attribute not read only
made beam python example run
now it runs
moved python processor into processing menu
added a todo about class loading
added a todo about class loading
added explanation to beampy-operators file
changed labels of red/nir factors
added comments to ndvi_op-info.xml
added some more comments to ndvi_op-info.xml
formatting
renamed python op; removed valid expression
using the factor in python op