Various build fixes:
* Added bitbucket-pipelines.yml for CI
* Removed old plugins/win32/transparency from build
* Added updated plugins/transparency.c for translation
#!/bin/sh
METHOD_NAME=$1
iftest-z"$METHOD_NAME"
then
cat<<EOF
This program calls purple API functions using DBus and prints the return value.
If you are not interested in the return value, use purple-send-async.