* To-do items for broader platform/go-version benchmarking
* neaten inferrer API
* extend type-inference unit-test cases
* Add benchmark scripts for comparing compiler versions
* mlr version in addition to mlr --version
* some go-benchmark files for Mac/Linux perf comparisons
* neaten perf-scripts
* merge
* type-scan optimization tests
* type-scan optimization infra
* test new inferrer
* mlr --time option
* include --cpuprofile and --traceprofile in on-line help
* sharpen inferred/deferred-type API distinction
* replace old inferrer with newer/faster
* update docs for new type-inferrer
* Function-pointerize IXS/IXSRegex to reduce runtime iffelsing
* remove IsRegexString and SuppressIXSRegex
* regression tests passing
* doc updates
* Don't use sed -I in ./configure
* Work around Go strconv's allowance of _ in int/float literals
* JIT mlrval type-interfence: mlrval package
* mlrmap refactor
* complete merge from #779
* iterating
* mlrval/format.go
* mlrval/copy.go
* bifs/arithmetic_test.go
* iterate on bifs/collections_test.go
* mlrval_cmp.go
* mlrval JSON iterate
* iterate applying mlrval refactors to dependent packages
* first clean compile in a long while on this branch
* results of first post-compile profiling
* testing
* bugfix in ofmt formatting
* bugfix in octal-supporess
* go fmt
* neaten
* regression tests all passing
