v0.8.12

made signature utilities robust

v0.8.11

upgraded to AbstractTensors v0.8

v0.8.10

corrected minor bugs

v0.8.9

refined metric, antimetric, complements, etc

v0.8.8

implemented antigrade, antireverse, etc

v0.8.7

defined Infinity element

v0.8.6

implemented Real, Complex constructors

v0.8.5

fixed some dispatch bugs

v0.8.4

deprecated conflicting method

v0.8.3

revised type references