Expecto 4.0.0

Release Notes: * v4.0.0 of expecto * Merge pull request #98 from AnthonyLloyd/master * minor version bug * nuget * Merge pull request #97 from AnthonyLloyd/master * testSequenced * remove reader writer locks * Merge pull request #96 from AnthonyLloyd/master * 32 threads for deadlock test * add reset and async wait * increase sleep in deadlock * Merge pull request #95 from MNie/feautre/92/update_readme * update readme to include new functions * Merge pull request #93 from MNie/feature/92/double_pr_this * Merge pull request #1 from MNie/feature/92/double_pr_this_add_whitespace * add isnotwhitespace function * wrong method name * fix build * pr this * Merge pull request #86 from AnthonyLloyd/master * Merge pull request #90 from MNie/feature/89/improve_seqequal_msg * improve sequence equal msg info, add missing spec to sequence equal * stress test docs and sequenced group tests and docs * sequenced group closes #87 * stress testing * more async * cli usage help * simplify evalTests