Create pickadate.fi_FI.js

Finnish translations for months and weekdays
Update translations/pickadate.fi_FI.js

fixed date formatting
infinite loop bug fix #73
click event propagation fix + min updated
docs + demo updated
readme updated
min files updated
docs updated
fix #77 & improved enabled date search
docs + demo updated
picker node docs
fix for disabling Sunday with Monday as first day (fixes #80)
docs + demo
package files
license added
better way to set hidden value + some other stuff
source files + docs updated
link fix
russian translation fix
Added Basque translation.