changed url for creating new quote from /quote/save to /quote/add to distinguish showing the form to add new quote to system and save action which actually persist the quote to system
1. initial concept of captcha (particularly recaptcha) for addition of new quote
2. fixing wrong url when quote is submitted (url remained /quote/save which is wrong) now it's either /quote/add (ie. same page) when there is an error or /quote/:id when quote is succesfully saved (ok I am sorry I know I should create two atomic commits instead)
Merge branch 'develop' of github.com:michalbcz/demagog-cz into develop