Shortened comment blocks
Added tests for NodeGet and Capabilities

- Add absolute path to open test files
- Split tests in files and add NodeCreate test
Alternative test for assertRaisesRegexp for Python 2.6
Add test coverage
Add missing Node* tests
Change name for NodeGet to religion (amend to other node tests)
Added Way tests
Make way tests python 2.6 compatible

- Use unittest2 for Python 2.6 and below
Unify usage of assert methods
Add Relation* tests
Added tests for Changeset
Fix check for open changeset in ChangesetUpdate
Typo in exception message
Set new version and id in return value of ChangesetUpload
Merge pull request #9 from metaodi/tests

Add unit tests for public API