Merge pull request #173 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:feature/lapply_peeling to master

* commit '1b458eb8':
  peeling initial iteration in lapply

* commit '9e014d99':
  test

* commit 'f9cd9395':
  Correct use of Source.internal()
  check style  fix; RPerfStats option fix
  Instrumentation refactoring. Retire RNodeTimer, REntryCounts; replace with RFunctionProfiler Retire FunctionUID replace use with SourceSection Refactor all context-specific instrumentation state into InstrumentationState class
  Enable rowsum test
  remove old FastROption
  row sum_matrix:  use AbstractVectors
  Rprof: move state into RContext
  Add support for storing Profiler in Context; more RSource cleanup/functions
  RowsumFunctions: cast pipeline review fixes
  Move RInternalInternalSourceDescriptions into RSource
  compiler fixes
  Tighten up Rsource methods, use getURI instead of getPath, set .internal() on internal sources Implement line.profiling
  Implement Rprof (no lineProfiling, memProfiling, gcProfiling)
  remove old  comment
  Implement rowsums_matrix (needed by summaryRprof); enable tests
  Change "description" to "name" in FunctionDefinitionNode. Fixes regression on source'd functions where name was lost (description is already used in Node for some other meaning)
  Provide access to Polyglot engine instance from Context

Merge pull request #167 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:bugfix/IOException_warnings to master

* commit 'aa92a44d':
  fix warnings for non-thrown IOExceptions

Merge pull request #168 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:feature/remove_NamedRNode to master

* commit 'd210c2ee':
  remove NamedRNode (use field in RLanguage instead)

Merge pull request #166 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:feature/reduce_arguments_subclasses to master

* commit '1252cb44':
  reduce the number of Arguments subclasses

Retire RNodeTimer, REntryCounts; replace with RFunctionProfiler
Retire FunctionUID replace use with SourceSection
Refactor all context-specific instrumentation state into InstrumentationState class

Merge pull request #162 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:bugfix/refcounting-lists to master

* commit '55fc122f':
  Avoid copying of temporary data when assigning to a list

* commit 'c8319850':
  Wrap only IOException to RuntimeException. Leave other exceptions untouched.
  Adjusting the code to not expect IOException from PolyglotEngine.eval and co.

Merge pull request #146 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:bugfix/field_substitute to master

* commit '160a5a4f':
  fix various warnings
  fix calls with erroneous "string" targets
  do not treat String constants specially when creating calls
  handle replacements of field accesses

Merge pull request #163 in G/fastr from ~LUKAS.STADLER_ORACLE.COM/fastr:bugfix/visibility_fixes to master

* commit 'b7e995a2':
  fix visibility of some builtins and enable passing tests

Merge pull request #149 in G/fastr from ~STEPAN.SINDELAR_ORACLE.COM/fastr:feature/match-call-after-use-method to master

* commit 'fff00eee':
  Tests for S3 group dispatch, match.call, syscall
  Fix S3 dispatches according to the first non-missing argument
  Fix: default argument na.rm for Summary methods
  Fix: match.call() works properly with S3 dispatch

* commit '3a3a55e4':
  fix dimnames bug; move code from RVector to vector extract code