Major release : v0.10.0

Hello everyone,

the latest release brings the advanced management of shareholders weights to everyone :

• you define a default weight for each shareholder,
• for each expense, you can define a specific weight for each shareholder (default weight otherwise),
• these features are included in free Piggy.

I hope they will make it handier.

Next steps :

• Create a default list of shareholders
• Merge piggies.

Cheers.