Added Scala support to engine.R
Created Markdown example calling R, Scala, Python and Bash, each performing string shuffling
Added Scala support to engine.R
Added Scala support to engines.R.
Merge pull request #640 from ElderResearch/master

Added Scala support to engines.R
news for #640
the method defaults$get(name, drop=FALSE) should preserve the names if they do not exist instead of making them NA

e.g. list(x=1)['y'] returns something like list(NA=NULL) instead of list(y=NULL), and we need the latter

fixes a bug reported by Frank Harrell in the mailing list http://bit.ly/17yitsD
bump version
I mean 2 here; a previous test modified the default value for a
the asis engine also uses options$eval, per suggestion of Kirill
multiline support for haskell thanks to @aavogt (PR #633)
Revert "#620: support multi-line expressions in inline chunks"

This reverts commit 1a1cc070b99ae33ed2d043e93569d532cbee921c.
Revert "#620: fix regression: add empty line before chunk, necessary e.g. for Markdown figures"

This reverts commit e8e15ab626ef69e51e2b506f5aee54cc998603d8.
Revert "#620: bugfix"

This reverts commit 7c6a19da6d34ebce72b2b4f7c61fc4962b84aac1.
Revert "#620: support boolean chunk option 'inline': if true, the entire code of the chunk is treated as if placed inside an \Sexpr{}"

This reverts commit d88e57168cd51c15f46ce77830499284ba564d97.
Revert "#620: remove empty line before each text block, instead append empty line to each chunk output"

This reverts commit a6d4d430cc9d18c5515399b572f0a51511c28529.
Revert "#620: don't add empty lines before and after code block in spin()"

This reverts commit 6eefb7b0efab98325803a528ffd6befb519305a3.
Merge branch 'master' into develop