added tasks to complete in README.md
added tutorial list
started on tutorial and updated readme
updated tutorial
updates for tutorial branching
parts 1 and 2 of tutorial
fixed bug in trann2dat for heterochronous trees
tutorial 2 html
Updated tutrial1 with fun and games
fixed tutorial2
Merge branch 'testing' into testing_d with tutorial data and some updates on functions
completed tutorial
updated tutorial
testing readme file
test tut in html
test 3 tutorial rnw
updated tut
fixed conflict
updated tutorial