V0.3

Changes to Version 0.3

Help: adjustments and new Examples
New: ls-style in functions 'dirx' and 'dira'
New: function 'dira'
New: check if grub4dos version is >=20170505
Bugfix: if 'name' or 'extension' is '!' no echo with 'dir[x|a]'
Bugfix: better compatibility is full grub4dos scriptline is in 'path' or 'filename'