Squashed 'cwltool/schemas/' changes from 0fbe804..3c40bd3
Squashed 'cwltool/schemas/' changes from 0fbe804..3c40bd3

3c40bd3 Merge pull request #250 from common-workflow-language/draft-4-to-v1.0
b4de02d clarify cwlVersion requirement
fad8810 move draft-4 to v1.0 directory
9b4e54f change cwl:v1.0.dev4 to v1.0.dev4 (no prefix)
ff05189 change draft-4.dev3 to v1.0.dev4
ce19b18 Merge pull request #249 from StarvingMarvin/master
b1482c0 Sentence about type definition simplification
REVERT: 0fbe804 clarify cwlVersion requirement
REVERT: 2acecf5 move draft-4 to v1.0 directory
REVERT: b29edd8 change cwl:v1.0.dev4 to v1.0.dev4 (no prefix)
REVERT: 9173ed7 change draft-4.dev3 to v1.0.dev4

git-subtree-dir: cwltool/schemas
git-subtree-split: 3c40bd32f50da34c21142341890c795a01bc32a7

chapmanb/cwltool,jeremiahsavage/cwltool,chapmanb/cwltool,common-workflow-language/cwltool,SciDAP/cwltool,dleehr/cwltool,jeremiahsavage/cwltool,chapmanb/cwltool,common-workflow-language/cwltool,jeremiahsavage/cwltool,dleehr/cwltool,jeremiahsavage/cwltool,common-workflow-language/cwltool,SciDAP/cwltool,dleehr/cwltool,dleehr/cwltool,SciDAP/cwltool,chapmanb/cwltool,SciDAP/cwltool