tweaks to completion including clang support for objc

.vim/after/plugin/snipMate.vim

@@ -5,8 +5,8 @@ if !exists('loaded_snips') || exists('s:did_snips_mappings')
 endif
 let s:did_snips_mappings = 1
 
-ino <silent> <tab> <c-r>=TriggerSnippet()<cr>
-snor <silent> <tab> <esc>i<right><c-r>=TriggerSnippet()<cr>
+ino <silent> <m-tab> <c-r>=TriggerSnippet()<cr>
+snor <silent> <m-tab> <esc>i<right><c-r>=TriggerSnippet()<cr>
 ino <silent> <s-tab> <c-r>=BackwardsSnippet()<cr>
 snor <silent> <s-tab> <esc>i<right><c-r>=BackwardsSnippet()<cr>
 ino <silent> <c-r><tab> <c-r>=ShowAvailableSnips()<cr>

.vimrc

@@ -93,6 +93,17 @@ set hidden
 
 " better completion
 set wildmode=list:longest
+let g:SuperTabDefaultCompletionType = "context"
+
+" snipmate
+let g:snips_author = 'Kenneth Ballenegger'
+
+" clang osx
+let sdk_path = 'echo -n `ls /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs | head -1`'
+let g:clang_complete_copen = 1
+autocmd FileType objc let g:clang_use_library=1
+autocmd FileType objc let g:clang_user_options = '-fblocks -isysroot ' . sdk_path . ' -D__IPHONE_OS_VERSION_MIN_REQUIRED=40300'
+
 
 " scroll by three lines when cursor moves off screen
 set scrolloff=3