[zoo package] fixed stubs in grid package
Merge branch 'master' of github.com:bedatadriven/renjin
Merge branch 'master' of github.com:bedatadriven/renjin
Removed unused cran module
Disabled event parsing in jline-based REPL

Jline was trying to parse bash-style events like !3
which is of course valid R code so not what we wanted.
Corrected handling of transitive package dependencies

In GNU R, a package can have dependencies that are listed
in either the "Imports" or "Depends" section of the DESCRIPTION
file.

Dependencies which are listed in the "Depends" section are
actually loaded into the global search path when the primary
package is loaded with library() or require().

This effectively means that all the symbols in packages in
"Depends" sections are available to the package's namespace,
_without being explicitly imported_ in the NAMESPACE file.

This is not ideal, but since many packages depend on the
symbols in packages listed in "Depends" but not explicitly
imported, we need to support it.