add processor - handler for operations with files
add processors: tar, zip, 7z
add options to config: date format, password, compression rate
refactor BaseDatabase - move file operations to processor. In database handlers only dump operation now.
add processor - handler for operations with files
add processors: tar, zip, 7z
add options to config: date format, password, compression rate
refactor BaseDatabase - move file operations to processor. In database handlers only dump operation now.
fix some bugs in previous commit
add (optional) argument to backup command, which allow choose processor from command line
append documentation
fix tests
fix database tests
add processor tests
fix bugs in processors
fix database handlers - move perform of dump folder creation from constructor to dump method
fix tests
Merge pull request #30 from lexxpavlov/master

add several processors - handlers for file operations (tar, zip, 7z)