Merge pull request #67 from pakozm/devel

Devel
Added unused_variable to off line text preprocessing
Merge pull request #69 from pakozm/devel

Devel
Updated digits from scratch example
Merge branch 'master' into pako-devel
Updated gnuplot script
Added lstrip skipping
Merge branch 'master' into pako-devel
Merge branch 'devel' of https://github.com/pakozm/april-ann into devel