Update README.md

test flatten()

implement glob() for task outputs

may need to change strategy later to in-container script injection, for compatibility & security

bump biowdl/tasks revision and reduce blacklist

parser: permit input/output sections anywhere in task (chanzuckerberg…

…#126)

Change repr of meta/parameter_meta values from string to string_liter…

…al (chanzuckerberg#122)

Fixes string_literal lexer for escaped single quote marks
Fixes and adds regression test for chanzuckerberg#120

struct literals, object-style (chanzuckerberg#111)

Add struct literals (in the old 'object' style) for miniwdl check. (No support for struct inputs in miniwdl cromwell yet.)

miniwdl cromwell: accept Boolean inputs

miniwdl cromwell: create convenient alternate tree of output files

closes chanzuckerberg#96

reject circular dependencies within tasks and workflows (chanzuckerbe…

…rg#90)

closes chanzuckerberg#43