Merge branch 'add_test_suite'
Merge branch 'develop' for version 0.2
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
Merge branch 'develop'
fix issue #1: remove deprecated MALLOC_ flags in 2d test
bump version to 0.3.1
Merge branch 'hotfix-failed-test-nfft' into develop