Remove bavier's redundant former key.

This is a followup to d1d2bf3eb6ba74b058969756a97a30aec7e0c4d1.

* bavier (old)-19D32566.key: Remove, since it's redundant with
'bavier-AFCA8B8E.key'.

Add bavier's new key.

* bavier-19D32566.key: Rename to...
* bavier (old)-19D32566.key: ... this.
* bavier-AFCA8B8E.key: New file.

Add key for raghavgururajan.

* raghavgururajan-7F8BE551.key: New file.

Add keys for lbraun.

* lbraun-08D8092A.key, lbraun (work)-1A378446.key: New files.

Add key for lle_bout.

* lle_bout-6BCD10A6.key: New file.

Add key for leoprikler.

* leoprikler-C70E2F87.key: New file.

Add public key for magali.

* magali-6E2DFC90.key: New file.

Add public key for jonsger.

* jonsger-8B4E4B9F.key: New file.

Add public key for m1gu3l.

* m1gu3l-79FABEC2.key: New file.

Add public key for planglois.

* planglois-E00B77FD.key: New file.

Add public key of brettgilio.

* brettgilio-BA27CB87.key: New file.

Add public key of bricewge.

* bricewge-66A18FAE.key: New file.

Add keyring.