Phrase recognition and database

[aliok]

In order to use in tokenizer (sentence to words), we need something like that.
Can be done statistically with some rules, with the support of Issue #25

hafta sonu => hafta_sonu
Turkiye Cumhuriyeti ==> Turkiye_Cumhuriyeti
ilan etmek --> ilan_etmek

Doesn't make sense to parse "ilan" and "etmek" separately.

Zemberek has already a small database about these.

Issue #32 is related

See http://www.tdk.gov.tr/index.php?option=com_content&view=article&id=221:Ayri-Yazilan-Birlesik-Kelimeler&catid=50:yazm-kurallar&Itemid=132