Fix Parameter Search and Sort capabilites

[cnlbob]

CellBlender's parameters have a user name and an internal name. The internal name is the primary key which allows the "user name" to be changed easily without breaking the linkages where the parameter is used.

This creates a problem with Blender's default searching and sorting functions which use the "name" key which is our internal name.

In other words, Blender's default searching and sorting works properly, but it is searching and sorting on the internal names which are all of the form g# rather than the user's chosen name.

Resolving this issue should be postponed until we decide whether we will be rewriting the parameter code due to the Blender property speed issue or not.

[cnlbob]

This commit from April 22nd, 2016 added sorting based on user names:

aed3a95