skip: introduce a skip package with utilities for skipping test cases

generate must variant

readme: tweak language

repo: update readme about 1.7.0

test: add assertion for Close (shoenig#138)

Add an assertion for calling .Close() and ensuring no error is returned.

bugfix: SliceContainsAll should pass cmp.Option to SliceContainsSubset (

shoenig#137)

* SliceContainsAll should pass cmp.Option
to SliceContainsSubset

* remove unnecessary newline

docs: finish up examples (shoenig#136)

Fix `FileNotExist` func (shoenig#119)

* fix FileNotExist on abs path

* run generate

build: add generate step to makefile (shoenig#116)

slices: make EqSliceFunc more flexible on types (shoenig#108)

This PR makes EqSliceFunc accept slices of two different types that
are then compared by the supplied comparator - which accepts one of
each type.