Merge pull request #124 from chrox/master

fix highlight offset in scroll mode
Add a os.execute-like function for calling execl

It is safer than using os.execute when passing filenames as arguments
Merge pull request #125 from thotypous/master

Add an os.execute-like function for calling execl
Better error handling on execl
Merge pull request #126 from thotypous/master

Better error handling on execl
Update LuaJIT to latest stable
Merge pull request #127 from thotypous/master

Update LuaJIT to latest stable
add getLinkFromPosition method for cre backend