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Merge pull request #5 from peeterjoot/master

doc tweaks: dumb first use questions.

Merge branch 'master' of https://github.com/digitaldomain/Multivectors.jl

fixed a bug in hodge star. added parameter to control max number of iterations in log and exp

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Merge pull request #2 from digitaldomain/mewert/dev

Merge branch 'master' into mewert/dev

large commit. refactored many metrical products, mainly to get a hodge star consistent with the one from exterior algebra, although only partiall satisfied this desire. the inner product used by the hodge star is not one of the inner products used anywhere else in the package, but maybe that's not something we want. In anycase regressive product and rightcontraction have changed. rightcontraction is not the same as most literature now, need to revist, which is ok as leftcontraction is still prefered. added shirokov inverse, which is much better than the previous inverse. added support for mixed Real types so you can do something like 1e₂ + 1.0e₂ without complaints.

changed my mind, will still support earlier versions of julia

bump minimum version to 1.5

drop earlier version of julia and add 1.6