Added PolarSSL library support to base tlsdate

The tlsdate-helper has been updated to support the entire chain of
gathering the server timestamp by using PolarSSL. Proxy support has been
disabled at this point as proxy-bio has to be rewritten or augmented to
also support a non-BIO form.
Added proxy support via a PolarSSL net-like layer
logic bug; caught by Ryan Sleevi
Add CHANGELOG entries for upcoming 0.0.6 release
Merge pull request #71 from pjbakker/polarssl-version

Added PolarSSL library support to base tlsdate
Add CHANGELOG entry about PolarSSL support
Update CHANGELOG for the bug found by Ryan
Add note about Chrome in TODO file
Compile again after 385386d9.
Merge pull request #74 from ln5/master

Seems borken since the polarssl addition; doh - my local change was unsynced, you win the race to fix this issue.
Add brew Formula for Mac OS X support of tlsdate
First attempt at a reasonable Mac OS X port of tlsdate
Add ax_platform.m4 to m4 directory
Add CHANGELOG entry for osx port
Update brew forumla for tlsdate
Fix looking up DNS Name fields if the CN doesn't match the hostname.

There were two bugs:

* check_cn() aborted when the data read from the CN field wasn't exactly
  length of the hostname. What makes more sense to check here is to make
  sure that the number of bytes read matches the length of the buffer it
  was read into, cn_buf.
* check_san() didn't check any further DNS Names when the first didn't
  match as a wildcard name (the hostname needs to match on just one of
  the DNS Names, not all of them).
Merge pull request #76 from xnyhps/master

Fix looking up DNS Name fields if the CN doesn't match the hostname.
Add Thijs Alkemade to CHANGELOG for his nice patch
We will release 0.0.6 today
tlsdated: support command-line proxy override

This makes a proxy passed on the command line with -x supplant proxies for
configured sources, and makes the 'proxy' stanza in sources optional (in which
case we supply no proxy argument for them).

Signed-off-by: Elly Fong-Jones <ellyjones@chromium.org>