v3.0.0

Thanks to all the contributors and users, OpenHub will be better because of you!

New

• Add Portuguese(#121), Korea(#123), and Spanish(#198) translation
• Add AMOLED(#161) theme

Improvements

• Better translations
• Make app move able to sd card(#154)

Fixes

• Fix featured topics
• Fix WIKI inner link invalid(#196)
• Fix repository size overflow (#197)