Russian translation
Fixed stress-test script to work with current version of CMS.
Added request duration output for stress-test requests.
Allow stress-testing from outside of contest local network.

Added stress-test script options to retrieving the contest data from a
file instead than from the database, and to store those information in
the file.
StressTest working with tasks with no statements.
New contributor.
Fixed notifications showed repeatedly in admin interface.
Merge branch 'master' of github.com:cms-dev/cms
Fix psutil in requirements.

psutil 2.0 has changed its API, making CMS incompatible with the new version.
Fix test interface when using a translation.

The file input element for the input file had a translated name attribute,
which caused the server to ignore the field and complain about missing file.
Fix an testing interface error when the contest has no tasks.
Lithuanian translation: a few missing lines.
Add subtask to the validator command line
Italian format: Task's yaml file is read from inside the task folder.
Lithuanian translation
Fix psutil in requirements.

psutil 2.0 has changed its API, making CMS incompatible with the new version.
Fix test interface when using a translation.

The file input element for the input file had a translated name attribute,
which caused the server to ignore the field and complain about missing file.
Fix an testing interface error when the contest has no tasks.
Fix YamlLoader reimport when "sol" subdirectory doesn't exist.
Fix reimporter to not wipe out user questions.