Format api_1.9.rst
Document major changes in 1.9
Add classifier for Python 3.4 support
Fix typos in api_1.9.rst
Change outdated years to 2014
Update installation documentation URL
Update release URLs and development status
Update release log
Add release notes for the connectivity package.
Merge pull request #2 from jtorrents/relnotes-1.9

Connectivity package release notes for NetworkX 1.9
Minor edits to connectivity package changes api_1.9.rst
Merge pull request #1184 from ysitu/relnotes-1.9

1.9 release notes