Add note that Ruby 1.9 is deprecated
Add Ruby 2.2.0 to test targets on Travis CI
Extract tests for searcher to a module
Make Searcher::XHTML::Restricted a subclass of Searcher::XHTML
Add a test class for Searcher::XHTML::Seamless
Add Searcher::XHTML::Seamless class
Fix a typo
Fix test data
Extract Searcher::XHTML::Seamless#find_iffset
Use variable already assigned
Define Searcher::Result.aggregate_step_intersection to calucurate "common" steps of two array of steps
Make Searcher::XHTML::Seamless#find_offset able to be set for whether start position or end position
Fix Seamless#visit to search word from content ignoring HTML tags
Insert a blank line to hightlight return value
Use #bsearch instead of linear search
Decrease method call
Inhibit unneccessary instantiation of Result::Step