whitespace character support

[Vutsuak16]

Do we need some fix for searching tweet exclusively on basis of whitespace character? For example, I need to search sentiments related to the word "intern", not internet nor international. So we could add support for '\s' too.

[Sentdex]

I actually would have expected the whitespace to work as you intended. Interestingly... it does not. I will leave this issue open for now, we'll need to look into whats wrong there. We're probably going to be eventually changing databases and then the searches will change completely at that stage anyway.