Implement Blob, Tree and Lazy, add tests for Tree.
-rw-r--r-- 23 .gitattributes
-rw-r--r-- 18 .gitignore
drwxr-xr-x - library
-rw-r--r-- 174 sample.php
-rw-r--r-- 151 test-settings.sample.php
drwxr-xr-x - tests