Continuation Core and Toolboxes (COCO) Code

- added branch number to bd => it is now possible to extract
forward and backward branch from bd
- added column with all continuation parameters as specified
by the user
- included overspecified parameters into output
- changed demo coneA to define function H as internal =>
demonstrates the effect of internal parameters
- alcont now adds only the true problem parameters to bd =>
extracting parameters for plotting is now stable (X and PARS
are now as expected)
- updated all examples to column changes in bd returned by coco

new to do list

re-added coneB

re-simplified coneA, event handling is now shown in cusp

temporarily removed example coneB

added new demo cusp

fixed demos after fixing boundary handling in cover1d

changed description somewhat

changes for testing boundary handling

fixed bug for constant components