Re-escaped backslashes in embed_frameworks generator

[README] Made capitalization and wording consistent 🌈

Thought I'd submit a small PR for the sake of consistency!

0d889c8c seems to have undone the escaped quotes, making them just regular bash quotes. This breaks app paths that have spaces in them.

This patch re-escapes the backslashes that escape the quotes in the generated bash (wow, that's a mouthful).

Release 1.2.0.beta.1

# gpg: Signature made Thu Oct 27 23:09:55 2016 CDT using RSA key ID 15DDA856
# gpg: Good signature from "Samuel Giddins <segiddins@segiddins.me>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 7B19 37A9 CF66 AEF6 52C9  4090 0119 5BB3 15DD A856

Run codesigning in parallel if COCOAPODS_PARALLEL_CODE_SIGN is set to true

Generate a PODS_TARGET_SRCROOT build setting for every pod target

Redefine FOUNDATION_EXPORT for C-only pods in umbrella header

Fix string escaping

Update CHANGELOG.md

Fix tests for non-ObjC FOUNDATION_EXPORT

Update CHANGELOG

[Bundle] Update Xcodeproj

Use native ruby plist serialization

For cross-platform consistency in execution output

Since Linux FSes have a tendency to be case-sensitive