Changed the parallelize method to spawn all the tasks at once
Fixed a misprint
Restore concurrent_tasks to its original value (committed a different one by mistake)
Restore a log message removed by mistake
The percentage must be approximated from below to avoid getting a fake 100%
Removed a redundant record_init_stats
Merge pull request #1293 from matley/fix-disaggregation

Fix disaggregation
first pass
removed input tables
38 tests passe
Let's store in the db the filtered hazardlib sources
Fixed the event based core_test.py
Fixed the apply_uncertainties logic
Fixed blocksize test
Fixed regression_3
Fixed source_test.py
merge latest changes. all unit tests pass
removed error_msg
all qa tests apart from hazard scenario passed
refactor logictreeprocessor to pass it to calculators