Use only the first dimension of hairpin loops
New tutorial section on the minimum spanning tree
Merged tutorial updates from master branch
Fixed some bugs in the creation of structures containing only a stem
Added from_bpseq_str to the tutorial
Removed debugging statements
Rename some things in the test file
Added a section about the multiloops
A new tutorial section
Include the chain id in the cg filename
Tutorial updates and warning messages
Specify whether pseudoknots should be removed
A new angle type
Added the connection_ends function
Changed the called names of some packages
Updated the threedee tutorial
Removed some print statements
Runtime error fix
Added a tutorial section about iterating over the different types of elements
Various tutorial updates, bug fixes and new test cases