1. Replaced the innards of an osrfStringArray to include an

1. Replaced the innards of an osrfStringArray to include an
osrfList instead of a pointer to an osrfList.  This change
eliminates a layer of malloc and free when creating and
destroying an osrfStringArray.  It also eliminates a layer
of indirection when performing other operations.

2. Eliminated the prototype for string_array_get_total_size(),
since no such function exists.

3. Added the const qualifier to various function parameters.

git-svn-id: svn://svn.open-ils.org/OpenSRF/trunk@1617 9efc2488-bf62-4759-914b-345cdb29e865