added log model
fix G-algo, added logging
added test
updated G-algo group and log, started bnf check algo
new view get_task and new redirection when user is not admin
Merge pull request #10 from diplay/admin-tools

Admin tools
added group report
improved group report page
bug fix
improved password generator view and fixed some bugs in V task editor
Merge pull request #11 from diplay/master

bug fix
fix
Merge pull request #12 from diplay/results-dev

Results dev
results controller
First G-algo version. Need to test
students' login transliteration
fixed
added data for task/edit
preparing to add results' editing. add student#destroy
models, controller changes and new js