MmsConnection refactor

- Use Apache HttpClient v4.x, only library that seems to like HTTP proxies
- Remove custom redirect logic in favor of library's

Fixes #1904
// FREEBIE
add CM APN list, remove non-MMS APN info

Fixes missing Verizon APN. Overall, smaller DB size but more APN info.
// FREEBIE
switch back to BufferedInputStream

// FREEBIE
Updated language translations.

// FREEBIE
Bump version to 2.1.9

// FREEBIE