technical
added plotting functions for pdb
Merge branch 'master' of https://github.com/chan-y-park/mose
Merge branch 'master' of https://github.com/chan-y-park/mose
resolved merging conflicts
minors
 minors
1) Implemented cutting of trajectories. 2) Implemented automatic tuning of parameters controlling primary evolution. 3) Implemented new method of primary evolution (keeps track of roots e_i for a long stretch). 4) Addressed trajectory bending, to a certain extent.