Merge branch 'master' into feature/message

ci.hocon

...fle.r.engine/src/com/oracle/truffle/r/engine/REngine.java

...ine/src/com/oracle/truffle/r/engine/TruffleRLanguage.java

...ngine/src/com/oracle/truffle/r/engine/shell/RCommand.java

...om/oracle/truffle/r/library/methods/SubstituteDirect.java

...ibrary/src/com/oracle/truffle/r/library/stats/Rbinom.java

...library/src/com/oracle/truffle/r/library/stats/Rnorm.java

com.oracle.truffle.r.native/fficall/Makefile

com.oracle.truffle.r.native/gnur/Makefile.libs

...tin/src/com/oracle/truffle/r/nodes/builtin/base/Args.java

...src/com/oracle/truffle/r/nodes/builtin/base/AsDouble.java

...n/src/com/oracle/truffle/r/nodes/builtin/base/Assign.java

.../com/oracle/truffle/r/nodes/builtin/base/BasePackage.java

.../src/com/oracle/truffle/r/nodes/builtin/base/Bincode.java

...tin/src/com/oracle/truffle/r/nodes/builtin/base/Bind.java

...c/com/oracle/truffle/r/nodes/builtin/base/CacheClass.java

...ltin/src/com/oracle/truffle/r/nodes/builtin/base/Cat.java

...rc/com/oracle/truffle/r/nodes/builtin/base/CharMatch.java

...n/src/com/oracle/truffle/r/nodes/builtin/base/Choose.java

...ltin/src/com/oracle/truffle/r/nodes/builtin/base/Col.java