add disambiguations in server context
gml does not exists anymore let's stick to geo
Added redirect parsing to XMLSource.fromXML, made it more consistent.

Using pattern matching instead of if-else. Also, this change makes the parsing more similar to WikipediaDumpParser.readPage() for consistency.
Fix formatting, similar to rest of file.
undo pull request #226: see more details in issues #221 and #232
Merge pull request #229 from jimkont/server_test_extraction

minors: 1. disambiguation context support in server / 2. fix a geo class
Merge pull request #233 from nilesh-c/fromxml

Added redirect parsing to XMLSource.fromXML and made it more consistent.
a little JavaDoc for delete()