TIKA-269: Ease of use -facade for Tika
TIKA-269: Ease of use -facade for Tika

Add methods to parse a document to a String.

Move duplicate code to helper methods.

git-svn-id: fa8893aa956664a85c8d981696777ef1db2d462a@814234 13f79535-47bb-0310-9956-ffa450edef68

icirellik/tika,smadha/tika,smadha/tika,smadha/tika,icirellik/tika,zamattiac/tika,zamattiac/tika,smadha/tika,zamattiac/tika,smadha/tika,zamattiac/tika,zamattiac/tika,smadha/tika,smadha/tika,icirellik/tika,icirellik/tika,icirellik/tika,icirellik/tika,icirellik/tika,zamattiac/tika,icirellik/tika,smadha/tika,zamattiac/tika,zamattiac/tika