Revises treatment of "postalCode"

Handles double postal codes in Sigel data (street address vs. city)
Add failing test for enriching of geo data from csv
Enrich data with geo coordinates from maps

Peform look up in lat/lon  maps if coordinates are not available
Adjust TestGeoEnrich to match sample data

Use Uni-Bibliothek Köln as test case for enriching of geo data
Rename 'locatedIn' to 'containedIn' to match context
Fix ID for DBS organisations with ISIL

- Look for ISIL in DBS data first
- If not found, create Pseudo ISIL (DBS-<INR>)
Fix handling of postal code

- Decide on correct postal code (postal code of visitor address vs.
postal address) during preparation of sigel data (morph-sigel.xml)
- Find more geo coordinates based on correct postal code
Upate _id generation for Sigel data with two street addresses

Use only the first street address as _id for merging of Sigel
and DBS data
Revise preparation of Sigel and DBS data

- Use isil as _id if available
- Use pseudo isil (= 'DBS-<inr>') as _id if not
Adjust whole morph process to work with isil / pseudo-isil as _id
Handle different types of addresses in Sigel data

Differentiate between main/visitor address, mail address, billing
address, and other address
Use inr as _id to merge some entries from DBS and Sigel

- Use isil if no inr is available in Sigel entry
- Update tests to work with the new procedure
Correct morphing of Sigel addresses

Get rid of some typos and mistakes
Add commented line to index larger data set from different source
(only Sigel data)
Update README.textile
Revise README.textile
Update of phone and fax number transformation

- Reformat phone number (no brackets)
- Add country code to phone number
- Remove fax number from transformation
Change structure of address data

- Postal / mailing address seperately
- Main / visitor address and other address under location
- Geo data only for the latter two
Fix transformation of address description

Merge Sigel fields 032P.z and 032P.3 for each address separately
(applies only to addresses of S or W type)
Update transformation of opnening hours