Better formulation of 'known issues' effecting perf of CrossInSAR. [CrossHelp]
Beautify geometry ratios figure. [CrossHelp]
Major update of 'General InSAR' help. [InsarHelp]

 - more context
 - reference to jLinda
 - figures
Rework and context of/in Unwrapping help. [UnwHelp]

 - introduced integrated unwrapping in overview pages, cross links,
 - more context,
 - better structure of the help page,
Clean up - removed "Coming soon" sections. [Help]
Change order of Snaphu I/O chains in Unwrap menu. [Dat]

 - Entries now ordered: (1) Snaphu export, (2) Snaphu import
Add Actions for Unwrap and Stitch operator. [UnwDat]
Add Graphs for Unwrap and Stitch oeprator. [UnwGpf]
Add Unwrap and Stitch entries to Unwrapping menu. [UnwDat]
Link help for Unwrap and Stitch entries. [UnwDat]
Refactored CrossRsmpOp 'tools' -> 'insar_coregistration'. [Cross]
Refactored CrossRsmpOpUI from 'dat' -> 'gpf' package. [Cross]
Add Graph for cross resampling. [CrossGpf]
Add Action for Cross Resampling Op. [CrossDat]
Add Cross Resampling entry to coregistration menu. [CrossDat]
Removed trailing dots from Range Filter entry. [Dat]
Update of unwrap core class: sparse matrices and optimization. [UnwCore]

 Note: Update of only java code classes; classes that interface
       glpk _not_ touched.
Update of UnwrapOp: native class NOT called, tile size increased. [UnwOp]

 - no native classes called, on all platforms java unwrapping,
 - tile size increased because of support for sparse matrices in core.

 This commit partially reverts: f6df78c
Update of hardcoded value for tile size of StitchOp. [UnwOp]

 - the tile size should be the same as in UnwrapOp