add support for optional catch binding#383

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cixel wants to merge 2 commits intoestools:masterfrom cixel:382-optional-catch-binding

+50-8

Commits on Oct 23, 2018

add support for optional catch binding
cixel
committed

Commits on Jan 10, 2019

Merge branch 'master' into 382-optional-catch-binding
cixel
committed