Allow perlbrew to be loaded via zstyle

Update ruby documentation regarding RVM

modules/perl/README.md

@@ -30,6 +30,10 @@ Perlbrew
 An alternative to the above is to use [Perlbrew][2], which allows for the
 management of multiple, isolated Perl installations in the home directory.
 
+You can specify the perlbrew location so the environment is automatically loaded.
+
+    zstyle ':prezto:module:perl:perlbrew' location '/path/to/perlbrew'
+
 Aliases
 -------
 

modules/perl/init.zsh

@@ -29,6 +29,13 @@ if [[ "$OSTYPE" == darwin* ]]; then
 
   unset perl_path
   unset cache_file
+
+  # Perlbrew
+  zstyle -s ':prezto:module:perl:perlbrew' location '_perlbrew_root' 
+  if [[ -s "${_perlbrew_root}/etc/bashrc" ]]; then
+    export PERLBREW_ROOT="${_perlbrew_root}"
+    source "${_perlbrew_root}/etc/bashrc"
+  fi
 fi
 
 #

modules/ruby/README.md

@@ -18,7 +18,8 @@ allows for managing multiple, isolated Ruby installations and gem sets in the
 home directory.
 
 Since RVM is loaded into the shell and is known to override shell commands, it
-may conflict with shell scripts.
+may conflict with shell scripts.  It may be best to load the ruby module last
+given that RVM needs to be injected into $PATH as the first element.
 
 rbenv
 -----