v0.5.0

SparseConnectivityTracer v0.5.0

Diff since v0.4.2

Merged pull requests:

• Support ifelse (#94) (@adrhill)
• Restructure benchmarks, add Hessian test cases (#104) (@gdalle)
• Fix 3-argument similar and add tests on type conversions (#106) (@adrhill)

Closed issues:

• Add benchmarks for Dual and Hessian tracers (#88)
• Global sparsity detection with control flow (#90)