Live logs added to Ltr site.

- Ltr client's logs are available from ltr site
- Changed Ltr client commandline usage (flags, etc.)
- Ltr client's logging refactored
- Decorator names for category and object models refactored

Change-Id: I2b856380834940762a02597b611207d8318280f1
Merge "Live logs added to Ltr site."