.n column in result of rdply is numeric again

Tests had to be altered, because this was actually the behavior of plyr 1.8.
clean NEWS
rdply never creates .id column as a factor
Merge pull request #201 from krlmlr/199-nullabor

.n column in result of rdply is numeric again
rbind.fill 1d arrays to vectors
Merge pull request #202 from crowding/rbind-vec-1d

rbind.fill 1d arrays to vectors
Don't run timing tests on cran
Bump version
Better equivalency test
Remove empty TZ check.
Fails if TZ is set (as always is on Solaris)
Remove old news file