Merge pull request #1 from superna9999/next

0.2 release
Fixed print invocation without parentheses for python 3
dtbdump works with python 3
Fixed detection of string nodes for python3
Remaining python3 compatibility issues fixed; all tests pass
Merge branch 'zaddach-jonas/python3-compatibility' into python3-compatibility
Add travis config for 3.X python test
Add travis config for osx test running
Fix python 2.6, add INSTALL.md