add robot tests
Merge pull request #32 from matejc/robottests

add robot tests
[enh] google engine added
[mod] minor mods ++ google engine changed
[fix] w3m submit button text display
[enh] paging support
[enh] bing, google paging support
[enh] paging added to example engine
[fix] translation updates
[fix] unused var removed
[enh] logo mod
[enh] paging support for dailymotion
[fix] pagination position
[enh] paging support for deviantart
[enh] paging support for youtube
[enh] paging support for ddg
[enh] paging support for filecrop
[enh] paging support for flickr
[enh] paging support for google images
[fix] comment removed