Include markup highlighting in list items. Fixes #68.

Author: kristijanhusak

syntax/org.vim

@@ -109,7 +109,8 @@ hi def link org_list_unordered Identifier
 syntax match org_list_def /.*\s\+::/ contained
 hi def link org_list_def PreProc
 
-syntax match org_list_item /.*$/ contained
+syntax match org_list_item /.*$/ contained contains=org_bold,org_italic,org_underline,org_code,org_verbatim,org_strike
+
 syntax match org_list_checkbox /\[[ X-]]/ contained
 hi def link org_list_bullet Identifier
 hi def link org_list_checkbox     PreProc