Add :ignore_routes option to skip routes which should not be annotated based on regex

[mintuhouse]

I use to skip routes which generate an annotation which includes local path e.g.,

# /mobile #<Rack::Builder:0x0000000a2ff800 @run=Mobile::Dispatch, @map=nil, @use=[#<Proc:0x0000000a30e2d8@/home/hasan/.rvm/gems/ruby-2.1.7@gogo/gems/rack-1.5.5/lib/rack/builder.rb:86>]> # /resque #<Resque::Server app_file="/home/hasan/.rvm/gems/ruby-2.1.7@gogo/gems/resque-1.25.2/lib/resque/server.rb"> 

which causes a file change after every annotate run - leading to bad churn on codeclimate

add ignore_routes: "#<" to config options to skip such routes

[ctran]

It looks like "-I" is already used. Can we just use the long form to avoid conflict?

[mintuhouse]

Fixed and squashed the commits

[ctran]

Thanks.