Bumping development to version 1.2.5
Adding source management

Added additional option for source's participants to override quota restrictions.
Greatly improved performance of CSV report output type

- replaced internal library for generating CSV files with native code
- reports generation time no longer scales linearly with the number of rows
Merge remote branch 'origin/release' into develop
Adding self temporary_file operation
Merge remote branch 'origin/develop' into qa
jQuery >= 1.6 requires using .prop() instead of .attr()
Merge remote branch 'origin/qa' into release