add edgeNGram token filter
add stemmer token filter
Merge branch 'master' into edgeNGram_token_filter

Conflicts:
	src/test/resources/json/createindex/createindex_analyis2.json
Merge branch 'master' into stemmer_token_filter

Conflicts:
	src/test/resources/json/createindex/createindex_analyis2.json
add support for nestedFilter in field sort
Merge pull request #110 from vbehar/stemmer_token_filter

add stemmer token filter
Merge pull request #109 from vbehar/edgeNGram_token_filter

add edgeNGram token filter
Merge pull request #112 from vbehar/sort_nested_filter

add support for nestedFilter in field sort