Update README.md

Update README with small FAQ to avoid (hopefully) annoying emails from lazy people :D
Hide empty status texts

It seems like WhatsApp advertises an empty string if one doesn't set a
status text explicitly. This leads to strange formatting of buddies in
Pidgin's buddy list when buddy details are enabled. Prevent this by
pretending a NULL status text if the status message is empty.

Signed-off-by: Lukas Fleischer <info@cryptocrack.de>
Merge pull request #38 from cryptocrack/hide-empty-status

Hide empty status texts
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>
Remove HTML/XML special entities

By default, libpurple escapes HTML/XML special characters such as double
quotes (resulting in "&quot;" being sent). Avoid this by converting
these sequences back to the original characters.

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

Trivial cleanups
Merge pull request #40 from cryptocrack/remove-xml-special-entities

Remove HTML/XML special entities