Added missing docstrings
Created new test which fails when a PUT request (for recovering password)
is made using a weak password.
It actually reveals that password control has not been made for active users
PUT request.
Added password control for password recovering PUT request.
"Test_put_active_user_weak_password" test passed.
Removed untrusted "pick_rand_pw" call function.
Noticed that sometimes "pick_rand_pw" returns a value that is not compatible
with passwormeter tests, and those tests require a valid password to run.
Removed "pick_rand_pw" function which sometimes generates invalid passwords.
Its calls were replaced by permanent strings.
Merge pull request #71 from Roxana28/no_reset_password_control

No reset password control