Calling all ruby enthusiasts

[Vladimir Kondratiev]

Hi, Thomas

I have just filled ports/183035, ports/183036 and ports/183037 with 
replacements for some ruby 1.8 only ports. See following table:

original port for ruby 1.8      its ruby 1.9, 2.0 successor

devel/rubygem-linecache       - devel/rubygem-debugger-linecache
devel/rubygem-ruby-debug      - devel/rubygem-debugger
devel/rubygem-ruby-debug-base /
devel/rubygem-ruby-debug-ide  - devel/rubygem-debugger-xml

WBR, Vladimir Kondratiev