core, quick_frontends: android compatibility hacks:

a couple of hacks have been used so backend can be launched on android using kivy
    - config file (sat.conf) is been read on a specific dir, using a detection of Cagou domains in constants.py
    - fixed crash when using sys.stdout.isatty in log_config.py
    - Q&D fix for logging encoding issue on android
    - when android is detected, the path/pattern to load plugins is modified
    - SRV is not working at the moment on android. If the platform is detected, the host is used directly with default port. A hosts_dir configuration can be used in [android] section to map a specific ip to a host
    - getRepositoryData in tools/utils return constant string on android. Proper repository data need to be copied during package building.
    - [quick app] more robust failure handling on asyncConnect error
    - [quick chat] default to utf-8 when getlocale doesn't return the actual locale.

src/tools/utils.py

@@ -25,6 +25,7 @@ from sat.core.log import getLogger
 log = getLogger(__name__)
 import datetime
 import time
+import sys
 
 
 def clean_ustr(ustr):
@@ -78,6 +79,9 @@ def getRepositoryData(module, as_string=True, is_path=False, save_dir_path=None)
             - date: ISO 8601 format date
             - tag: latest tag used in hierarchie
     """
+    if sys.platform == "android":
+        # FIXME: workaround to avoid trouble on android, need to be fixed properly
+        return u"Cagou android build"
     from distutils.spawn import find_executable
     import subprocess
     KEYS=("node", "node_short", "branch", "date", "tag")