Added nebirhos theme

themes/nebirhos.zsh-theme

+# Based on robbyrussell's theme, with host and rvm indicators. Example:
+# @host ➜ currentdir rvm:(rubyversion@gemset) git:(branchname)
+
+# Get the current ruby version in use with RVM:
+if [ -e ~/.rvm/bin/rvm-prompt ]; then
+    RUBY_PROMPT_="%{$fg_bold[blue]%}rvm:(%{$fg[green]%}\$(~/.rvm/bin/rvm-prompt s i v g)%{$fg_bold[blue]%})%{$reset_color%} "
+fi
+
+# Get the host name (first 4 chars)
+HOST_PROMPT_="%{$fg_bold[red]%}@$HOST[0,4] ➜  %{$fg_bold[cyan]%}%c "
+GIT_PROMPT="%{$fg_bold[blue]%}\$(git_prompt_info)%{$fg_bold[blue]%} % %{$reset_color%}"
+PROMPT="$HOST_PROMPT_$RUBY_PROMPT_$GIT_PROMPT"
+
+ZSH_THEME_GIT_PROMPT_PREFIX="git:(%{$fg[red]%}"
+ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[blue]%}) %{$fg[yellow]%}✗%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[blue]%})"