Update package version to v0.1.2

This release fixes:

1. Issue involving spaces within virtualenv DEST_DIR path ( Issue #20 )
2. Non-determinism involved in choosing Python executable to create
   virtualenv with when multiple Pythons are available on the computer.
3. zlib-related recommendation for OS X in the README ( Issues #22 / #23 )
4. the continuation of the ebcli_installer.py script beyond its failure
   to install the EB CLI.

Author: rahulrajaram

VERSION

@@ -1 +1 @@
-0.1.0
+0.1.2