devel/libCello: add port

[xmj]

Summary

devel/libCello: add port

Cello is a library that introduces higher level programming to C.

Interfaces allow for structured design
Duck Typing allows for generic functions
Exceptions control error handling
Constructors/Destructors aid memory management
Syntactic Sugar increases readability
C Library means excellent performance and integration

WWW: http://libcello.org

PR: 198495
DiffRev: placeholder
Submitted By: Matthew Closson <[e-mail]>
Approved by: swills (mentor)

Test Plan

http://xmj.me/freebsd/buildlogs/libCello-1.1.7.log

[koobs]

Already committed:

http://svnweb.freebsd.org/ports?view=revision&revision=380970

[koobs]

Also, this crept in to the diff:

SUBDIR += py-python-pcre

[koobs]

Also, I'd have preferred all lower-case

[xmj]

(see above)