add rules to evaluate packages if older emacs

cl-lib from ELPA is needed with versions of emacs < 24.3. this modification to the Makefile will test if a call to `package-initialize` may be needed.
remove debugging code accidentally added to last commit

hotfix
Add use-package package
Remove ruby-mode (fixes #696)
Merge pull request #697 from leathekd/use-package-package

Add use-package package
Add reverse-theme recipes

https://github.com/syohex/emacs-reverse-theme
Merge pull request #699 from yasuyk/reverse-theme

Add reverse-theme recipes
add interaction-log recipe
Add better-defaults
Add erefactor recipe

https://github.com/mhayashi1120/Emacs-erefactor
Merge pull request #701 from yasuyk/erefactor

Add erefactor recipe
Build script: print time zone offset, not name
Add helm-rails
Add flymake-yaml recipe

https://github.com/yasuyk/flymake-yaml
Merge pull request #702 from yasuyk/flymake-yaml

Add flymake-yaml recipe
flymake-yaml: Remove external script
Merge pull request #705 from yasuyk/fix-flymake-yaml

Fix flymake-yaml recipe
Split bind-key package out of use-package

See jwiegley/use-package#22
Add fuel (fixes #708)
add process_log.py script to maintain download counts