#issue27 Add flip option in export().
#issue27 Add flip option in export().
#issue27 adapt filp to arbitrary geotransform.
#27 if geotransform is (0,1,0,0,0,1), apply flippling in nansat.export()
#27 add docstring for flip in nansat.export()
#30 if use_gcp=false in reproject(), compute geotransform and give it to vrt.create_warped_vrt()
#30 nansat_tools: node() takes specified childnode. vrt:shift_bands() shifts images and modift geoTransform / GCPs. nansat: shifts() creates a new shifted nansat object.
#30 vrt.shift is called from nansat.reproject().
#30 Change function name to  vrt.create_shirted_vrt(). Call create_shifted_vrt() from nansat.reproject() direclty. create_shifted_vrt returns shifted VRT object and self.raw was replaces in nansat.reproject() same as create_warped_vrt().
#30 modify vrt.create_shifted_vrt() according to the implementation plan
#30 change argument for self.vrt.create_shifted_vrt() in nansat.reproject().
Merge remote-tracking branch 'origin/issue30' into issue30
#30 add issue30_test.py
Merge branch 'issue30' of https://github.com/nansencenter/nansat into issue30
#30 issue30_test : get dataset in shift_vrt()
#30 add function get_shifted_vrt, rename create_warped_vrt() and resized() accordingly
#30 check span and intersection before reproject in Nansat.reproject
#30 update docstrings
#30 merging develop into issue30
minor bug in test_nansatmap