Remove old version of ledger.el
Add new version of ledger.el

Allows me to remove some customization from my init.el
Switch to elpy

- Remove python-mode and MELPA python.el
- Just use the standard python.el included in emacs 24.3
- no longer need to install yasnippet or auto-complete
- Use flycheck-mode in elpy
Disable autopair mode in calc
Switch to solarized theme again (better with ledger)
New packages