Don't crash on startup with the Turkish locale
Merge pull request #141 from lp0/fix-turkish

Don't crash on startup with the Turkish locale
Use eu.lp0.slf4j:slf4j-android
Revert "FIX #85"

This reverts commit 5a0b8f40f1762d74428a1aa9c554a503e0d14098.
Add TCP keepalive
Make keepalive configurable

This doesn't include realtime updates to the current connection,
although that would be possible.
Compare buffer names in both lowercase and uppercase

This appears to have the most liberal behaviour in both German and
Turkish.

Fixes issue #140.