sys.source() didn't handle run-time errors properly

git-svn-id: https://svn.r-project.org/R/trunk@62419 00db46b3-68df-0310-9c12-caf00c1e9a41
update

git-svn-id: https://svn.r-project.org/R/trunk@62420 00db46b3-68df-0310-9c12-caf00c1e9a41
update

git-svn-id: https://svn.r-project.org/R/trunk@62422 00db46b3-68df-0310-9c12-caf00c1e9a41
add message, white-space cleanup

git-svn-id: https://svn.r-project.org/R/trunk@62424 00db46b3-68df-0310-9c12-caf00c1e9a41
drop mentioning data.frame method which has been deprecated for long and
finally defunct.  Thanks to David Winsemius


git-svn-id: https://svn.r-project.org/R/trunk@62425 00db46b3-68df-0310-9c12-caf00c1e9a41
Fix for the profiling signal going to the wrong thread.


git-svn-id: https://svn.r-project.org/R/trunk@62427 00db46b3-68df-0310-9c12-caf00c1e9a41
packages can reset digits and corrupt timing

git-svn-id: https://svn.r-project.org/R/trunk@62428 00db46b3-68df-0310-9c12-caf00c1e9a41
better for massageExamples

git-svn-id: https://svn.r-project.org/R/trunk@62429 00db46b3-68df-0310-9c12-caf00c1e9a41
tweak needed for gcc 4.8.x

git-svn-id: https://svn.r-project.org/R/trunk@62430 00db46b3-68df-0310-9c12-caf00c1e9a41
more for texinfo 5.0

git-svn-id: https://svn.r-project.org/R/trunk@62432 00db46b3-68df-0310-9c12-caf00c1e9a41