1.0.9
* BUGFIX: argument being treated as pattern

1.0.8
* Simple usage added, with no arguments, default to -r -i

1.0.6
* --exclude: exclude lines with this pattern

1.0.5
* BUGFIX: Embarrassing bug where duplicate entries appear when more than one filter is used

1.0.3
* BUGFIX: panics when searching a binary file

1.0.2
* Fixed formatting of line number

1.0.1
* BUGFIX: When a pattern is not found and passed as file name, sgrep was showing error

1.0.0
* --raw : implemented to show without colours, line number or header
* --show-top : show top n lines
