DataBase updates
documents: add document dialog
Merge branch 'develop' of https://github.com/alexey-kozlenkov/ExadelPractice

Conflicts:
	src/main/java/com/exadel/studbase/domain/impl/Student.java
	src/main/webapp/html/studentInfo.html
end merging
Sub version.

NOt Stable
Merge branch 'develop' of https://github.com/alexey-kozlenkov/ExadelPractice into develop
add pdf export back-end & controller
Add autiffication error view support;
Module organized table controller, filter;
Check list.css;
Add some clear fix for table into common.css;
Filter simple realisation support created;
Fix send mail bugs.
add simple session entity which can be used in back-end & front-end
add export controllers
Boolean filter value support;
Started injecting table sorter plugin;
Merge branch 'alan' into develop
add controller for documents
Merge branch 'develop' of https://github.com/alexey-kozlenkov/ExadelPractice

Conflicts:
	src/main/java/com/exadel/studbase/web/controller/InfoPageController.java
Merge remote-tracking branch 'origin/alan'
delete session
filter front-end core 60%;

Stable
Add filter Descriptor template.
Merge commit
add document queries, dao and services