Some extra ruby filetypes and beginnings of conceals

editors/vim/after/syntax/ruby.vim

@@ -0,0 +1,11 @@
+if !has('conceal')
+  finish
+endif
+
+syntax keyword rubyControl not conceal cchar=¬
+syntax keyword rubyKeyword lambda conceal cchar=λ
+syntax match rubyGreaterThanOrEqual ">=" conceal cchar=≥
+syntax match rubyLessThanOrEqual "<=" conceal cchar=≤
+
+set conceallevel=2
+

editors/vim/ftdetect/ruby.vim

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+" Ruby
+au BufNewFile,BufRead *.rb,*.rbw,*.gem,*.gemspec set filetype=ruby
+
+" Ruby on Rails
+au BufNewFile,BufRead *.builder,*.rxml,*.rjs set filetype=ruby
+
+" Rakefile
+au BufNewFile,BufRead [rR]akefile,*.rake set filetype=ruby
+
+" Rantfile
+au BufNewFile,BufRead [rR]antfile,*.rant set filetype=ruby
+
+" IRB config
+au BufNewFile,BufRead .irbrc,irbrc set filetype=ruby
+
+" eRuby
+au BufNewFile,BufRead *.erb,*.rhtml set filetype=eruby
+
+" Thorfile
+au BufNewFile,BufRead [tT]horfile,*.thor set filetype=ruby
+
+" Gemfile
+au BufNewFile,BufRead Gemfile set filetype=ruby