Remove unused imports and fix online indicator (friends).

Fixes #151 (all white spaces fixed)
Merge pull request #156 from ratan12/Fix_friendlist

Remove unused imports and fix online indicator (friends).
Add Languages

Add language files from OnSky translation project for German, Greek,
Spanish, Dutch, Polish, Russian, and Turkish.
Link customShareText with the String.xml file for the translations.
Fix time format

Single digit minutes were displayed without leading zero.
Remove some hardcoded strings in DetailView

This removes some hardcoded strings displayed while data loading.
Don't set create flag for entries without user status

Setting the create-flag for entries without user status (read or watch
status) is useless.
Don't save anime/manga without read/watch status in DB

updateWithDetails() saved the anime/manga in the database even if the
entry had no read/watch status.
Merge pull request #162 from d-sko/time_fix

Fix time display format
Merge pull request #163 from d-sko/detailview_hardcoded_string_fix

Remove some hardcoded strings in DetailView
Merge pull request #158 from ratan12/add_string

Link customShareText with the String.xml file for the translations.
Merge pull request #164 from d-sko/unknown_entry_fix

Bugfix: prevent entries without status in anime/manga list
Profile: Moved friendlist, added history & added tabs.