Fixed sublime plugin behaviors.

- Fixed subl search path order in Mac because Sublime Text 3 is named
  Sublime Text.app by default instead of Sublime Text 3.app and they are
  mostly likely to be placed in /Applications instead of
  $HOME/Applications.
- Fixed sublime text binary path in Linux. The sublime_text binary
  installed by Ubuntu installer is placed in /opt/sublime_text/sublime_text
  instead of /usr/bin/sublime_text.
- Use zsh's built-in process detach syntax instead of nohup.

plugins/sublime/sublime.plugin.zsh

@@ -3,19 +3,19 @@
 local _sublime_darwin_paths > /dev/null 2>&1
 _sublime_darwin_paths=(
     "/usr/local/bin/subl"
-    "$HOME/Applications/Sublime Text 3.app/Contents/SharedSupport/bin/subl"
-    "$HOME/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl"
-    "$HOME/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl"
+    "/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl"
     "/Applications/Sublime Text 3.app/Contents/SharedSupport/bin/subl"
     "/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl"
-    "/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl"
+    "$HOME/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl"
+    "$HOME/Applications/Sublime Text 3.app/Contents/SharedSupport/bin/subl"
+    "$HOME/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl"
 )
 
 if [[ $('uname') == 'Linux' ]]; then
-    if [ -f '/usr/bin/sublime_text' ]; then
-        st_run() { nohup /usr/bin/sublime_text $@ > /dev/null & }
+    if [ -f '/opt/sublime_text/sublime_text' ]; then
+        st_run() { /opt/sublime_text/sublime_text $@ &| }
     else
-        st_run() { nohup /usr/bin/sublime-text $@ > /dev/null & }
+        st_run() { /usr/bin/sublime-text $@ &| }
     fi
     alias st=st_run