Fixed remove command

Previously the line numbers weren't reordered after a line removal.
[1.1.5] Updated CHANGELOG
Merge branch 'fix-remove'
[1.1.6] Updated CHANGELOG
Created InputSanitizers
Used array_splice to remove a line
Merge pull request #82 from pyrech/array-splice

Used array_splice to remove a line
Merge pull request #81 from pyrech/input-sanitizer

Created InputSanitizers
[1.2.0] Fixed CS

Ran php-cs-fixer fix src
[1.2.0] Code review
[1.2.0] Updated CHANGELOG