Merge pull request #138 from ralzakark/test

Inserita pulsantiera in homepage
Fix margin bottoni filtro, rimosso debug lines su filter comp. forzato uppercase sui pulsanti
modified:   app/main/issue/_filters_btn_bs.lua
modified:   app/main/issue/_filters_ext.lua
modified:   locale/translations.it.lua
modified:   static/bootstrap.css
modified:   static/m5s_bs.css
Caricate nuove frecce svg
new file:   static/svg/leftarrow.svg
new file:   static/svg/rightarrow.svg
Inserita freccia dx in welcome page
modified:   app/main/index/_welcome_bs.lua
modified:   static/m5s_bs.css