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
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'
improved manual info, education info, exadel info
icons excel and pdf
Merge branch 'develop' and add export cool

Conflicts:
	src/main/java/com/exadel/studbase/dao/impl/DocumentDAO.java
	src/main/webapp/css/list/list.css
add export cool
improved documents
Merge branch 'develop' of https://github.com/alexey-kozlenkov/ExadelPractice

Conflicts:
	src/main/java/com/exadel/studbase/web/controller/InfoPageController.java
	src/main/webapp/html/list.html