Fix in construction of interpolation table. [Cross]
Correct initialization of logger in Cross Resampling Op. [Cross]
Update of ApplyOrbitOp
CrossResampling functionality - Core and Operator. [CrossRsmp]

 This is a combination (squash) of 5 commits:
 - Interim commit of cross resampling rework. [CrossRsmp]
 - Minor refactoring and cleanup. [CrossRsmp]
 - Work with radians in all jLinda geo calls.  [CrossRsmp]
 - Clarify ratio computations used for resampling. [Core:CrossRsmp]
 - Clean-up of math. [CrossRsmp]
Add boolean to select unwrap core class and switched to GLPK. [Unwrap]
Increase tile size for unwrapping to 32x32. [Unwrap]
More elevation models for Coreg-DEM-Refinement. [DemCoreg]

 Initially only SRTM3 was supported. Now all DEMs supported by NEST-core
 can be now parsed for the coregistration refinement, except for
 External DEMs.

 Additional parameter was introduced in the operator, and UI was
 polished to show DEM's only if refinement checkbox is ticked.
Update Coregistration Graph with new params. [DemCoreg]
Add 'tile extension' param for allow tuning of Topo removal. [TopoProd]

 Quick and dirty resolves #15
Merge branch 'v0.8'

Conflicts:
	jlinda-core/src/main/java/org/jlinda/core/Constants.java