Rename functions with unintuitive names
Rename functions with unintuitive names

Renamed the following functions:
* Parameter._be_add_param() -> Parameter.write_new()
* Parameter._be_change_param() -> Parameter.write_update()
* Folder._be_write_section() -> Folder._write_new_section()
* Folder._be_delete_section() -> Folder._write_delete_section()

Also made the first two functions non-internal, since they are called
outside of their class.

Signed-off-by: Frida Flodin <ff857b0d3de7ab66a379b61924cd8bf58e81be7b@cendio.se>

astrand/hiveconf,astrand/hiveconf