Moved back espeak.path property to system properties, as we decided during F2F
no longer copy attributes of 
 in eSpeak's SSML serializer
Improved logging and timeout handling
- When the SSML is split, all the chunks are logged
- Make a special case when encoders throw timeout exceptions
- Set a variable timeout for encoding, it depends on the number of secs to encode
Load the TTS config file from the system.properties by default.
- As a consequence, annotations are read in Java rather than in XProc/XSLT
More accurate TTS logs
Prevents CSS inliner from exiting when optional config file is not provided
- If the config file is not provided, its URI will be wrong and an exception was mistakenly thrown
PLS lexicons are now read via a Java XProcStep, instead of pure XProc.