added some experimental features
added some helper function for database manipulating
added tests
added some CRUD functions
added clean fetch result helper
moved CODENAME to config.inc
fixed typo
added techs json entry
moved techs.php to techs/index.php
used is_* instead of gettype
added simple create page
introduced twig
introduced twig
Merge branch 'master' of github.com:bcho/vedu-server