some random changes
integrate new interval tree with bedfile
integrate new interval tree code
do some refactoring
add some test cases
start migration to htsjdk
progress towards using htsjdk
finish incorporating htsjdk
proper interface
add some unit tests
update version
Merge branch 'master' into interval-tree

Conflicts:
	pom.xml
	src/main/java/com/binatechnologies/varsim/BedFile.java
	varsim.iml
Merge pull request #16 from bioinform/interval-tree

Interval tree, HTSJDK