Replace uses of `as_string` from the email lib.

The `as_string` function from `email.message.Message` assumes that it's being
used to encode a message for, well, email transmission -- and as a result, it
changes lines beginning with "From " into lines beginning with ">From ". Given
that we're using that module for multipart uploads, this behavior is surely
not what we want.

We basically inline the body of `as_string`, setting `mangle_from_` to
`False`.
Merge pull request #18 from craigcitro/from_encoding

Replace uses of `as_string` from the email lib.
Updated Copyright Years

Updated copyright years on all applicable files
Merge pull request #19 from mmattioli/googleapiclient-updates

Update Copyright Years on googleapiclient Files
Updated Documentation

Removed FAQ.md as it didn’t really serve much of a purpose; the
information it provides was consolidated into README.md

Updated README.md to reflect development dependencies, minor spacing
issue, and provide link that was previously included in FAQ.md
Merge pull request #21 from mmattioli/documentation-updates

Updated Documentation
Removing DFA Reporting API samples
Merge pull request #22 from jimper/master

Removing DFA Reporting API samples