Merged pull request #300 from gallois/master.

Added a custom theme, based on eastwood

themes/gallois.zsh-theme

+ZSH_THEME_GIT_PROMPT_PREFIX="%{$reset_color%}%{$fg[green]%}["
+ZSH_THEME_GIT_PROMPT_SUFFIX="]%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[red]%}*%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_CLEAN=""
+
+#Customized git status, oh-my-zsh currently does not allow render dirty status before branch
+git_custom_status() {
+  local cb=$(current_branch)
+  if [ -n "$cb" ]; then
+    echo "$(parse_git_dirty)$ZSH_THEME_GIT_PROMPT_PREFIX$(current_branch)$ZSH_THEME_GIT_PROMPT_SUFFIX"
+  fi
+}
+
+#RVM and git settings
+if [[ -s ~/.rvm/scripts/rvm ]] ; then 
+  RPS1='$(git_custom_status)%{$fg[red]%}[`~/.rvm/bin/rvm-prompt`]%{$reset_color%} $EPS1'
+fi
+
+PROMPT='%{$fg[cyan]%}[%~% ]%(?.%{$fg[green]%}.%{$fg[red]%})%B$%b '