Add „Flocke“ to added.txt [de]

Fix DE_AGREEMENT for:
Die Haferflocken dazugeben.
[en] integrate MOST_COMPARATIVE and MORE_JJR, add immunization to avoid false alarms
[en] more words written together
[en] new rule: AH_HA, one more lexicon fix
really remove search limits when asked (it's anyway faster than manual eval)
[en] make the rule ignore "We need one more older member".
[en] some fixes, one new US rule, and an optional style rule
[en] new rules and fixing false alarms for IT_IS
[en] more fixing and generalization for IT_IS
[en] fix failing test, organize imports
[en] fix false alarm
[en] new rule: IN_WHO
[en] 'none the less' => nonetheless, less/least + superlative/comparative
[en] generalize LETS_LET
[ca] update replace.txt (thanks to Jordi Mas), and related rules
[en] refine IT_IS to avoid many false alarms
[en] refine IT_IS[21], IT_IS[22], and YOUR
[en] new punctuation rule: COMMA_MONTH_DATE
[en] new rules for missing 'the' before JJS
[en] generalize DT_PRP