Merge pull request #295 in G/fastr from...

Merge pull request #295 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:feature/cast_pipelines4 to master

* commit 'bf443363':
  Row and RowMeans: converted to pipelines
  RNGFunctions: converted to cast pipelines
  Rm: converted to casts pipelines + new tests
  Rank: converted to cast pipeline
  PMinMax: converted to cast pipelines
  nzchar and pmatch: converted to cast pipelines
  NZChar+Order: converted to cast pipelines.
  Parse: converted to cast pipelines