Accept page can now be translated
Some Finnish translations for transaction process
Display minimum listing price in payment settings
Improvements to getting started page texts.

Proofread texts, mailto links.

Note: when deployed to production, remember to add sales_email and
support_email to production server configuration.
Improve welcome email copys

Link to contact support, link to knowledge base from config, text
improvements.
Merge pull request #796 from sharetribe/copy-text-improvements

Copy text improvements