Support for PT-TLS (RFC 6876)

- Support for SWID IMC/IMV
- Support for command line IKE client charon-cmd
- Changed location of pki to /usr/bin
- Added swid tags files
- Added man pages for pki and charon-cmd
- Renamed pki to strongswan-pki to avoid conflict with
  pki-core/pki-tools package.
- Update local patches
- Fixes CVE-2013-6075
- Fixes CVE-2013-6076
- Fixed autoconf/automake issue as configure.ac got changed
  and it required running autoreconf during the build process.
- added strongswan signature file to the sources.

.gitignore

@@ -5,3 +5,5 @@
 /strongswan-5.0.3.tar.bz2
 /strongswan-5.0.4.tar.bz2
 /strongswan-5.1.0.tar.bz2
+/strongswan-5.1.1.tar.bz2
+/strongswan-5.1.1.tar.bz2.sig