multiplatform fixes
* change to new burpui demo url
* fix tests removing unnecesary pandas dependencies as it is not used
* fix multiplatform usage, changing temp files from os.getuid() to getpass.getuser()
* change to new burpui demo url
* fix tests removing unnecesary pandas dependencies as it is not used
* fix multiplatform usage, changing temp files from os.getuid() to getpass.getuser()