fix(gitignore): move from bzrignore

since this project is on github now it should be a gitignore file
fix(configure.ac): you must check for lib64

this fixes the build for fedora 18
INSTALL: add additional dependencies

These dependencies are required to build on Ubuntu.
Merge pull request #16 from coreos/fix-gitignore

fix(gitignore): move from bzrignore
Merge pull request #17 from coreos/check-lib64-and-lib

fix(configure.ac): you must check for lib64
Merge pull request #18 from philips/patch-1

INSTALL: add additional dependencies
Make the log file no longer world readable

I've renamed a variable to make the code easier to understand.

Also it'll force the file permissions of the log file to be only
read|write by the owner, not by the whole world.

Just after the logging.basicConfig is called (which creates the log file
if it's not there already), it runs a chmod on the file.

This will happen even if the log file was made a long time ago.

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The other way to make the file read/writable but only when it's created
is to override the RotatingFileHandler's rotate method as shown here: http://stackoverflow.com/questions/1407474/does-python-logging-handlers-rotatingfilehandler-allow-creation-of-a-group-writa

However that's hard to do in C.

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Another way would be to check if the log file was created in the last
second, however that's not possible in posix C.