pycurl: make doc and version strings const and read-only

Signed-off-by: Oskari Saarenmaa <os@ohmu.fi>
pycurl: make internal functions static

Signed-off-by: Oskari Saarenmaa <os@ohmu.fi>
Pass resolved (address, port) to opensocket callback.
Use *_ADDRSTRLEN constants as opposed to literals.
Add includes that freebsd wants for inet_ntop
Delete comments that are no longer applicable
Update changelog
Merge pull request #40 from p-push/opensocket_address_ntop

Pass resolved (address, port) to opensocket callback.
Merge pull request #41 from p-push/housekeeping

Housekeeping
Delete unneeded code
Merge pull request #42 from p-push/housekeeping

Delete unneeded code
Ensure resObj is always initialized
No camel case kthx
Merge pull request #43 from p-push/resobj-uninitialized

Ensure result object is always initialized
Allow dynamic linking on windows

http://curl.haxx.se/mail/curlpython-2013-10/0001.html
Update changelog
Merge pull request #44 from p-push/windows-static-lib

Allow dynamic linking on windows
Add CURLOPT_DNS_SERVERS option support.

http://curl.haxx.se/mail/curlpython-2013-10/0001.html
According to the manual these options were added in libcurl 7.24.0
Update changelog