Make sure trajectory does not escape from chebfun2v domain.
Add test.
Add 'periodic' flag for Chebfun2 constructor. Pass preferences around rather than keep obtaining them from chebfunpref.
Add periodic flag to constructor. 2nd attempt.
Merge remote-tracking branch 'chebfun/fix-chebfun2v-ode45' into development
Modify how the tech is queried.
Merge branch 'development' of github.com:chebfun/chebfun into development
Merge remote-tracking branch 'chebfun/feature-chebfun2-periodic' into development
Reorganising CHEBFUN2 tests.
Merge branch 'development' of github.com:chebfun/chebfun into development