Several trivial simplifications

* Drop unneeded load_plugin() and unload_plugin() functions.
* Remove unneeded variables.
* Use strchr() instead of reinventing it.

Signed-off-by: Lukas Fleischer <info@cryptocrack.de>
Update progress status texts

Choose texts that are more in line with the official libpurple
protocols.

Signed-off-by: Lukas Fleischer <info@cryptocrack.de>
waprpl_blist_node_*(): Bail out early

Return early instead of wrapping the whole function body in an if-block.

Signed-off-by: Lukas Fleischer <info@cryptocrack.de>
Merge pull request #39 from cryptocrack/trivial-cleanups

Trivial cleanups