documentation
Added Multiplicity Flag and Failed Path Flag
Merge branch 'Bertini' of https://github.com/antonleykin/M2 into Bertini

Conflicts:
	M2/Macaulay2/packages/Bertini.m2
	M2/Macaulay2/packages/Bertini/doc.m2
no undocumented symbols left... but several need much better docs
Fixed bug
working on NumericalHilbert documentation
Fixed errors that occurred during check "Bertini"
collection of small examples from Dan's webpage
RefinementFailure is defined in NAGtypes already
Merge branch 'Bertini' into NAG
changed things in PHCpack.interface...
a way to handle aux dir for a package
Merge branch 'NAG' of github.com:antonleykin/M2
more NumericalHilbert doc
a bug in the slice of a witness set
SYSTEMS reorganized
embedded comps, but reduced isolated comps
TEST code
Merge branch 'NAG' of github.com:antonleykin/M2
Software option mess in decomposition routines fixed; PHCpack trackPath interface switched start and target; other small things