add logistic sigmoid transformation and corresponding test
Add inverse for sigmoid function; manage invalid inputs; add to output the list of invalid inputs
added new icons :)
Merge pull request #57 from gem/change-icons

added new icons
added helper script for running tests
removing doubly commited file
change log file path
Merge pull request #56 from gem/add-sigmoid-transformation

add logistic sigmoid transformation and corresponding test
fix process_layer tests
Merge branch 'improve_tests' of github.com:gem/qt-experiments into improve_tests
Fix test with missing values
Merge branch 'improve_tests' of github.com:gem/qt-experiments into improve_tests
update tests
all test passing
better error reporting in makefile
Merge pull request #55 from gem/improve_tests

Improve tests adding the new test infrastructure as in plugin builder
Merge master