shell ver.1
Shell ver.2
Shell ver.2 (fixed little bugs)
Shell ver.3 (formatting code)
Shell ver.3 (cp <dir\file> <dir> fixed)
Shell ver.3 (enter bug fixed)
Shell ver.4 (fixed bug with spaces)
checkstyle done
Shell with bug in cp & mv. no pakage. no code convention
(Main.java deleted)
ready shell
bugs fixed
shell. 2nd try
(Checkstyle done)(calculator added)
shell. 3rd try
(fixed ener, checkstyle again)
Merge pull request #103 from nlevashov/master

Никита Левашов, 295, Shell
(fixed spaces)
Merge pull request #61 from BaJIuK/master

Валентин Барышев, 294, Shell
Merge remote-tracking branch 'upstream/master'