Modified .gitignore
Added Calculator project
Moved calculator project files. Created package for the project.
Changed base of numeric system according to my variant in Calculator.
Returning value from main method now.
Fixed bracket style. Changed return value of main to void. Separated Task class implementation into a single file.
Moved Calculator src files to new directory.
Initial commit for Shell project. Initial implementation of 'cd' command.
Added 'exit' command implementation.
Added 'dir' command implementation.
Added 'pwd' command implemntation. Modified prompt displaying according to TechTask.
Added 'mkdir' command implementation.
Added 'rm' command implementation.
Fixed crash for launch with arguments.
Reimplemented input shell system.
Showing error message on wrong directory for 'cd' command.
Removed unnecessary semicolon.
Considering absolute paths case in implemented commands.
Added exit condition on any error occurrence.
Added 'mv' command implementation.