Add new rake targets in bash_completion, refine script and README

utils/bash_completion/README.markdown

@@ -1,21 +1,35 @@
 # octopress_bash_completion
-This will auto complete options for used in [Octopress](http://octopress.org/)
+This will auto complete targets for used in [Octopress](http://octopress.org/)
 
 ---
 # Install
 * copy rake to /etc/bash_completion.d/
 * relogin or `. /etc/bash_completion.d/rake`
 
-# Auto complete options
-* deploy 
-* generate 
-* preview 
-* watch 
+# Auto complete targets
+* deploy
+* generate
+* preview
+* watch
 * new_post
+* new_page
+* isolate
+* integrate
+* clean
+* update_style
+* update_source
+* gen_deploy
+* copydot
+* rsync
+* set_root_dir
+* setup_github_pages
+* list
+* -T
+* install
 
 # Tested environment
 * Ubuntu 14.04
 
 # Reference
 * [An introduction to bash completion: part 1](http://www.debian-administration.org/article/316/An_introduction_to_bash_completion_part_1)
-* [An introduction to bash completion: part 2](http://www.debian-administration.org/article/317/An_introduction_to_bash_completion_part_2)
+* [An introduction to bash completion: part 2](http://www.debian-administration.org/article/317/An_introduction_to_bash_completion_part_2)

utils/bash_completion/rake

@@ -1,10 +1,13 @@
 _rake() 
 {
-    local cur prev opts
+    local current_keyin_str targets
     COMPREPLY=()
-    cur="${COMP_WORDS[COMP_CWORD]}"
-    opts="deploy generate preview watch new_post"
+    current_keyin_str="${COMP_WORDS[COMP_CWORD]}"
+    targets="deploy generate preview watch new_post new_page isolate \
+          integrate clean update_style update_source gen_deploy   \
+          copydot rsync set_root_dir setup_github_pages list -T   \
+          install"
 
-    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+    COMPREPLY=( $(compgen -W "${targets}" -- ${current_keyin_str}) )
 }
 complete -F _rake rake