Added check of GDAL_DATA environment variable and updated README files.

4 jobs for v0.4.26 in 6 minutes and 39 seconds (queued for 6 minutes and 38 seconds)
latest
Status Job ID Name Coverage
  Test
passed #2379
test_arosics

00:01:04

59.0%
failed #2380
test_arosics_install

00:05:21

 
  Deploy To Pypi
skipped #2381
deploy_pypi
 
  Cleanup
passed #2382
cleanup_pypirc

00:00:14

 
Name Stage Failure
failed
test_arosics_install Test There is an unknown failure, please try again
arosics
arosics.tmp
$ python -c "import arosics; print(arosics)"
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/root/anaconda3/envs/arosics/lib/python3.5/site-packages/arosics-0.4.26-py3.5.egg/arosics/__init__.py", line 9, in <module>
raise EnvironmentError("Please ensure that the GDAL_DATA environment variable is set and try again!")
OSError: Please ensure that the GDAL_DATA environment variable is set and try again!
ERROR: Job failed: exit code 1