minor fixes on exceptions
Merge remote-tracking branch 'origin/lucene' into lucene

Conflicts:
	wikAPIdia-sr/src/main/java/org/wikapidia/sr/ESAMetric.java
Added a test for phrase similarity
Added pruning
Merge remote-tracking branch 'origin/lucene' into lucene

Conflicts:
	wikAPIdia-sr/src/main/java/org/wikapidia/sr/ESAMetric.java
i'm confused
ESA is working... i guess
Added pruning
TextFieldBuilder
Merge branch 'lucene' of https://github.com/shilad/wikAPIdia into lucene
Merge branch 'master' of https://github.com/shilad/wikAPIdia into lucene
added a whole bunch of new languages
Modified RawPage so that its getters are consistent with LocalPage
Completed TextFieldBuilder (for now) by creating TextFieldElements
Moved some language-specific functionality out of WikapidiaAnalyzer and into the specific Tokenizers
removed all implementation of LuceneOptions.PLAINTEXT_FIELD_NAME and replaced it with appropriate implementation of TextFieldElements
....
Added pruning
Merge remote-tracking branch 'origin/lucene' into lucene
straightened out LuceneIndexer so that loading works properly and efficiently for one or multiple indexes
Merge remote-tracking branch 'origin/lucene' into lucene