v3.2.0-RC11

Change log:
 * add the new pEp_log functionality -- notice that some platform code is
   UNTESTED; I am waiting for feedback from platform maintainers;
 * add the new pEp_debug functionality;
 * convert existing code to use the new logging and debugging functionality;
 * set_debug_color: remove DYNAMIC_API function.
 * log_event, log_service, _service_error_log:  remove DYNAMIC_API functions,
   replaced by the new log functionality in src/pEp_log.h; I could re-implement
   the old functions based on the new API if people want that, but using the API
   directly is better: it is nicer to use and also prints source precise source
   location information, for free.
   * People involved in deployment who build the Engine may want to define the
   CPP macros
     PEP_SAFETY_MODE, PEP_LOG_LEVEL_MAXIMUM, and PEP_LOG_DESTINATIONS ,
   well explained in the comments in src/pEp_debug.h and src/pEp_log.h .
   When not defined explicitly these macros get reasonable default values.
   The old macro
     _PEP_SERVICE_LOG_OFF and NOLOG
   should not longer be used.  The Engine now errors out at compilationt time if
   they are defined.
 * deployment (Unix, Android): it is now possible to use Unix-style variables
   with syntax $ALPHANUMERICSORUNDERSCORES (but not ${...}) in installation paths.
   The code has been there for a long time but it had clearly not been tested; it
   is now supposed to be correct.
 * fix gitea #83, #84: there is a new rating for messages (and identities)
   protected by a media key: PEP_rating_media_key_protected , still with no
   colour.
 * in the unusual case that we decrypt an *outgoing* message, do not send pings
 * Make config_service_log into a no-op.  Deprecate it.
 * update pEpEngineSequoiaBackend dependency to a new commit
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Merge tag 'v3.2.0-RC11' into PEMA-41

v3.2.0-RC11
Change log:
* add the new pEp_log functionality -- notice that some platform code is
  UNTESTED; I am waiting for feedback from platform maintainers;
* add the new pEp_debug functionality;
* convert existing code to use the new logging and debugging functionality;
* set_debug_color: remove DYNAMIC_API function.
* log_event, log_service, _service_error_log:  remove DYNAMIC_API functions,
  replaced by the new log functionality in src/pEp_log.h; I could re-implement
  the old functions based on the new API if people want that, but using the API
  directly is better: it is nicer to use and also prints source precise source
  location information, for free.
  * People involved in deployment who build the Engine may want to define the
  CPP macros
    PEP_SAFETY_MODE, PEP_LOG_LEVEL_MAXIMUM, and PEP_LOG_DESTINATIONS ,
  well explained in the comments in src/pEp_debug.h and src/pEp_log.h .
  When not defined explicitly these macros get reasonable default values.
  The old macro
    _PEP_SERVICE_LOG_OFF and NOLOG
  should not longer be used.  The Engine now errors out at compilationt time if
  they are defined.
* deployment (Unix, Android): it is now possible to use Unix-style variables
  with syntax $ALPHANUMERICSORUNDERSCORES (but not ${...}) in installation paths.
  The code has been there for a long time but it had clearly not been tested; it
  is now supposed to be correct.
* fix gitea #83, #84: there is a new rating for messages (and identities)
  protected by a media key: PEP_rating_media_key_protected , still with no
  colour.
* in the unusual case that we decrypt an *outgoing* message, do not send pings
* Make config_service_log into a no-op.  Deprecate it.
* update pEpEngineSequoiaBackend dependency to a new commit

src/pEpEngine.h

@@ -37,9 +37,9 @@ extern "C" {
 #define PEP_ENGINE_VERSION_PATCH 0   // the last already-released or
                                      // being-released patchlevel,
                                      // which must always be defined
-#define PEP_ENGINE_VERSION_RC    10  // the last already-released RC for this
+#define PEP_ENGINE_VERSION_RC    11  // the last already-released RC for this
                                      // patchlevel, or not defined if not an RC
-#define PEP_ENGINE_VERSION_PLUS  +   // Only defined when the repo is in a
+//#define PEP_ENGINE_VERSION_PLUS  +   // Only defined when the repo is in a
                                      // non-released non-RC state.
 
 /* The following macros serve to machine-generate a definition of
@@ -295,8 +295,8 @@ typedef enum _PEP_rating {
 
     // red
 
-    PEP_rating_mistrust = -1,
-    PEP_rating_under_attack = -3
+    PEP_rating_mistrust = -1,    // manual detection of an attack
+    PEP_rating_under_attack = -3 // automated detection of an attack
 } PEP_rating;