Change <select> class to "selectpicker".

[kekek2]

No description provided.

[AdSchellevis]

@kekek2 please test these kind of changes before committing, the first file I'm trying to validate has style issues

vs the original

Which isn't an improvement, eventually changed it to (8857213)

Which obviously cost more time then just do a search replace on the <select> tag

Next one on the list wash the phase1 page, which has items that are nicely hidden using javascript, which needs the proper changes to prevent the following from happening:

Please feel free to open another pull request if you're going to test the pages locally first, I'm going to close this one for now since it has too many issues.