remove traj, update tracks output, add description
cran submission
add library(trajectories)
test now check under different TZ
change require() into requireNamespace()
add ChangeLog
explicit args for plot
Merge pull request #3 from mpadge/master

explicit args for plot
explicit args for plot revised
Merge branch 'master' of github.com:mpadge/trajectories into mpadge-master
Merge branch 'mpadge-master'
tidy
Merge branch 'master' of https://github.com/edzer/trajectories

Conflicts:
	DESCRIPTION
	R/Tracks-methods.R