1. Refactored logging subsystem;
2. Improved dvc init messages;
3. Supported remote:// syntax for local remotes;
4. Supported relative paths for local remotes;
5. Introduced dvc cache command;
6. dvc push/pull/etc are now throwing a warning when stages are not up to date;
7. Refactored deps/outs classes;
8. Supported specifying port in the url for ssh remote;
9. Fixed the bug with improper command escaping on dvc run;
10. Refactored remote classes;
11. Supported recursive push/pull/etc;
12. Fixed the bug with improper path resolution when dvc move receives a file name with a suffix.
13. Fixed the bug with improper file/directory size cast in our state database;
14. Fixed the bug with improper file size calculation;
15. Refactored dvc import error message;
16. Fixed the bug with dvc file not being moved on dvc move;
17. Made first iterations to comply with pylint;
18. Introduced another level of the build cache, that will checkout files instead of running the command on dvc run, if it detects that this stage has been ran already;
19. Fixed the bug with improper directory path handling in dvc move;
20. Fixed the bug with cyclic dependencies in a DAG of a project, as well as introduced additional levels of checks to prevent that from happening;