XCA 1.3.2 released

This is a patch release, fixing some bugs.
I added a (non-modal) OID resolver (Extra -> OID resolver) where you can enter the OID, the short name like "C, ST, O, OU, or the long name like "commonName". If you ever wanted to know, whether XCA supports a special OID, just enter it.

I also adapted the configure script and includes to detect and compile against QT5.
Although these changes seem big for a patch-release, they almost did not touch existing code.

Changelog:

• Gentoo Bug #562288 linking fails
• Add OID resolver, move some Menu items to "Extra"
• SF. Bug. #81 Make xca qt5 compatible
• SF. Bug. #107 error:0D0680A8:asn1 encoding
• Don't validate notBefore and notAfter if they are disabled.