Remove math/ruby-narray_miss which depended on deleted math/ruby-narray
Now dynamically links rather than static.
- adopt new ${opt}_ARGS for USE and DEPENDS
- small cleanup and restructure
- add LICENSE
- no version bump [1]

[1] A new apr-util release is in the pipe and with
    this commit the next changes are more transparent.

with hat apache@
Update to the 20140917 snapshot of GCC 4.9.2.
Update to version 0.5.6
Update to git20140902.

PR:		ports/193247
Submitted by:	maintainer