Removed old recipes directory
Major update on all custom files

Every custom file was reviewed to remove the use of `el-get'; instead the
function `install-if-needed' (to be defined in the main file) is used.
Also, `defshell' was replaced with `eshell' and the .gitignore was updated
to ignore eshell internal directory.

The best of this update is that Windows users will have a much easier time,
since they're relying only on package.el and not a bunch of other scattered
tools.
Updated sample file and README.md

Updated README to reflect the drop of `defshell'.
Also, the sample file was updated with the needed changes to manage the
installation using `package.el' instead of `el-get'.
Moved initialization code to a `bootstrap' file
Updated README and Windows instructions
Merge branch 'el-get-removal'
Set home as default directory