Phrase database

[badicsalex]

Acceptance criteria:

• There is a phrase database for each state of the Act Db (i.e. for each date)
  • The storage is optimized for size like the Act storage
• Each phrase has a definition, which is a Reference (maybe multiple? maybe structural?)
• Phrase definitions are shown in a document view
• Phrases can be listed and searched from the main page
• Phrase references are extacted during the hun_law step
  • With suffix stripping
• Phrase references are proper links in Act view:
  • Shown with dotted underline
  • Clickable, goes to the phrase page
  • Snippets are shown