1. Section title changes.
2. Moving the glog discussion into installation.rst
3. Re-working the faqs into two separate chapters.
Change-Id: I95dd25bace50f0f9077ef114504999190686963e
Otherwise, it will fail on Python 3 with:
"UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position
7690: ordinal not in range(128)"
We have to use io.open() instead of open(), because open() does not
accept the encoding on Python 2.
Change-Id: I77b6552491e8de01d79a26d2f146ddbd968cce49
Since Ceres is moving to using GitHub for issues, and the Google
Code URL in the current copyright header will soon become invalid,
update all the headers.
Change-Id: I1fce70375d1bcf098591f07b4d8f01a5c1e0789c