add 'gem-readme' command.
Merge pull request #1321 from rpag/gem-readme

add 'gem-readme' command.
group gem-readme with other gem-* commands
add 'gem-search' command
Merge pull request #1322 from rpag/gem-search

add 'gem-search' command
Add rbx-2 to allowed failures for now
Cleanup warnings

 * `lib/pry/code.rb:271: warning: instance variable @with_marker not initialized`
 * `lib/pry/commands/show_info.rb:93: warning: instance variable @used_super not initialized`
 * `lib/pry/commands/whereami.rb:140: warning: instance variable @method_code not initialized`
 * `lib/pry/history.rb:86: warning: File.exists? is a deprecated name, use File.exist? instead`
 * `lib/pry/module_candidate.rb:61: warning: instance variable @source not initialized`
 * `lib/pry/module_candidate.rb:79: warning: instance variable @source_location not initialized`
 * `lib/pry/pager.rb:137: warning: instance variable @system_pager not initialized`
 * `lib/pry/pager.rb:186: warning: instance variable @pager not initialized`
 * `lib/pry/wrapped_module.rb:311: warning: instance variable @all_source_locations_by_popularity not initialized`
Merge pull request #1327 from yuki24/without-warnings

Cleanup warnings
Prevent additional single-line if indentations [Fixes #1325]
Merge pull request #1329 from lowensk/issue-1325-single-line-if

Prevent additional single-line if indentations [Fixes #1325]
spec: rm stray reference to OpenStruct

OpenStruct was removed in 91d412c044f174a2c50d1583a3f34c1f0f795e7d, but
a stray reference remained in the test suite. Remove it here.
Merge pull request #1332 from ktdreyer/rm-openstruct

spec: rm stray reference to OpenStruct