add instrumentation plugin
rename api url to service
add h2database console for project
add api classes & models
fixed api classes
Merge remote-tracking branch 'origin/models_Sergey'

Conflicts:
	src/main/java/ru/yandex/school/hlebushek/models/Users.java
merge branch models_Sergey
fix user api
fix problem with models
fix problem with models
add test data in migrate script
update api methods & models
change posts API
test_interface_added
Merge pull request #8 from autoschool/webinterface

Client side added
Update README.md
single post page added
update api & comments model
update api & posts model
update api & users model