Request for review of branch lloda-array-support

[Daniel Llorens]

Hello fellow Guilers,

I'd like to have this branch merged in master. It is already rebased on top.

http://git.savannah.gnu.org/gitweb/?p=guile.git;a=shortlog;h=refs/heads/lloda-array-support

A summary:

* New functions array-from array-from* array-amend! array-amend! 
array-for-each-cell array-for-each-cell array-for-each-cell-in-order.
* New section in the manual, ‘Arrays as arrays of arrays’.
* Tests for these functions.
* A minor bug fix in the compiler.
* Some minor speed ups.
* Move to C99.

All tests pass, with the exception of version.test (which also fails in master).

Please have a look and let me know if you notice any issues. 

Regards

        Daniel