Added automatic boundary type identification, fixed potential boundary type identification to properly account boundary types, and fixed a boundary-counting issue while computing agreement.

Conflicts:
	segeval/agreement/test.py
	segeval/data/tsv.py
	segeval/data/tsv_test.py
Converted imports to follow PEP 328.

Conflicts:
	segeval/agreement/test.py
	segeval/data/tsv.py
	segeval/data/tsv_test.py
	segeval/format.py
	segeval/format_test.py
	segeval/similarity/__init__.py
	segeval/similarity/boundary_test.py
	segeval/similarity/distance/multipleboundary_test.py
	segeval/similarity/distance/test.py
	segeval/similarity/segmentation_test.py
Added a fix for the passing mass as an int mistake.
Updated version number.