v0.3.4

AtomsBase v0.3.4

Diff since v0.3.3

Closed issues:

• Element can't be found when using String for AtomID (#71)

Merged pull requests:

• Nicer error message for string-based element lookup (#72) (@mfherbst)
• Add :diagonal option to test_approx_equal (#73) (@ejmeitz)