Fix local fonts and change font-face values (#2877)

app/javascript/fonts/montserrat/Montserrat-Regular.eot

...vascript/fonts/roboto-mono/robotomono-regular-webfont.eot

app/javascript/fonts/roboto/roboto-bold-webfont.eot

app/javascript/fonts/roboto/roboto-italic-webfont.eot

app/javascript/fonts/roboto/roboto-medium-webfont.eot

app/javascript/fonts/roboto/roboto-regular-webfont.eot

app/javascript/styles/about.scss

app/javascript/styles/basics.scss

app/javascript/styles/containers.scss

app/javascript/styles/fonts/montserrat.scss

app/javascript/styles/fonts/roboto-mono.scss

app/javascript/styles/fonts/roboto.scss

app/javascript/styles/forms.scss

app/javascript/styles/tables.scss