add user, create new task, cancan, refactoring
make cancancan gem work
Project refactoring finish
Merge branch 'refactoring' of https://github.com/vkrotkikh/taskmanager into refactoring

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
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# the commit.
Merge branch 'refactoring' of https://github.com/vkrotkikh/taskmanager into refactoring
spec files added
little spec fixes made
Merge remote-tracking branch 'origin/refactoring' into refactoring
little more spec fixes
pull request  fixes
made some fixes according to comments on github
Merge branch 'refactoring' of https://github.com/vkrotkikh/taskmanager into refactoring

Conflicts:
	app/controllers/projects_controller.rb
	app/controllers/tasks_controller.rb
	app/views/projects/show.html.erb
Merge pull request #5 from vkrotkikh/refactoring

Refactoring and Rspec