common.js: Clean up. Remove bcycles. common.*.less: Clean up.  Add new features

Common less: 1) deprecate old .flex, .flex-flow 2) add greateful trick .ration() for img like sizing behavior for blocks.
Add node.js common module
Add common icon font
Add ov-h into .ratio for some reasons.
 Force keeping sizing.
[Not tested] common.node.js: Add VK interface.
Comment deprecated methods.
common.node.js: Fix  vkFabric
Rename settings.json
Change common icons scheme. Remove FONTastick fonts (fontastick is dead) and add svg icons.
Add some less mixins and js functions.
less: Add .container-for-fit-child() hack mixin. Add .inter-indentation() mixin. Clean up.
js: make working $d dom wrapper, add .off method. Add useful function getFileSize ().
common.js: Clean up. Add $e Event  wrapper draft.
Make @*-font family everywhere available.
Add ruble-currency-2.svg