RFR: JDK-8178278 Move Standard Algorithm Names document to specs directory

[Magnus Ihse Bursie]

The Security Standard Names document will be moved to a new location, so 
all links needs to be updated. Also, a minor fix to the build system was 
needed.

Bug: https://bugs.openjdk.java.net/browse/JDK-8178278
WebRev: 
http://cr.openjdk.java.net/~ihse/JDK-8178278-standard-names-spec-as-markdown/webrev.01

/Magnus