Other loadable module changes

MODULE_PARAM no longer exists
Use module_param(name, type, perm) instead
Better type checking
Works for linked-in code too
Will someday set up sysfs attributes

Symbols are no longer exported by default
EXPORT_NO_SYMBOLS is redundant

Take care with the module use count
It should be maintained outside the module
Doing otherwise invites race conditions
MOD_INC_USE_COUNT is gone
If you must, use try_module_get() instead
Note that this call can fail