[skeleton] Use unittest.main directly
Instead of lgc.testlib.unittest_main as they are identical.
Tutorials~~~~~~~~~We present a few tutorials of different levels. The blog buildingtutorial introduces one smoothly to the basic concepts.Then there is a photo gallery construction tutorial which highlightsmore advanced concepts such as unit tests, security settings,migration scripts...toctree:::maxdepth: 1 base/index advanced/index tools/windmill.rst textreports/index dataimport/index