added syntax highlighting for conf files

vim/.vim/filetype.vim

@@ -1 +1,2 @@
 au BufNewFile,BufRead known_hosts setfiletype knownhosts
+au BufNewFile,BufRead *.conf      setfiletype conf

vim/.vim/syntax/conf.vim

@@ -0,0 +1,23 @@
+if exists("b:current_syntax")
+  finish
+endif
+
+syntax clear
+
+syntax match confSection "[a-zA-Z0-9_]\+" contained
+highlight link confSection Statement
+
+syntax match confKey "[a-zA-Z0-9_]\+\s\+"
+highlight link confKey Identifier
+
+syntax match confValue "[^\n]*" contained
+highlight link confValue String
+
+syntax match confObjectHeader "^\[\[\S+\]\]/$"
+syntax match confObjectHeader /\v\[\S+\]/
+highlight link confObjectHeader Type
+
+
+" Enable folding based on sections
+setlocal foldmethod=marker
+setlocal foldmarker=[,]