Rename InitCTX() to Init() and make it not pure virtual, as requested by Brian

[ffurano]

Please review and let me know.
When this phase is finished we will push the secxtractor library to epel-testing

[ellert]

The signature in 4.5.0 was

// Initializes an ssl ctx
virtual int Init(SSL_CTX *, int) = 0;

So if you wanted to make it backward compatible I don't think this was right. Brian's (@xrootd-dev) comment read:

• Rename InitCtx back to the original Init
• Make InitSSL / FreeSSL not pure-virtual (put in the trivial inline implementation in the base class).

i.e. the not pure virtual comment referred to InitSSL and FreeSSL, not Init.

[ellert]

In update 4.6.0-5 in EPEL testing I used the following patch in line with my previous comment:
http://pkgs.fedoraproject.org/cgit/rpms/xrootd.git/plain/xrootd-backward-compat.patch

[ffurano]

Ok, thank you Mattias, so I was missing the second little point. I am making a pull request.

[ffurano]

Actually I added the commit to this pull request.

[ellert]

Shouldn't Init() still be pure virtual though? It was in 4.5.0.