get version from GITHUB_REF_NAME (#605)

update github actions (#597)

* Update GitHub Actions


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Co-authored-by: Nico Mexis <nico.mexis@kabelmail.de>

fix ClassCastException

NewTransformer#findInvokeExpr attempts to cast InvokePolymorphicExpr to InvokeExpr under certain inputs, which causes a ClassCastException.

this patch is similar with

9c6cde4
9c0db1d

set version to 2.1

update gradle to 4.0

handle InvokePolymorphicExpr as java8 style

fix compiler error in generating asmifier of dex file

--HG--
branch : 2.x

merge 2.x to default

merge 0.0.9.15 to default

merge 0.0.9.14 to default