Make activesupport more lax
bumps version
Merge branch 'release/v0.0.2' into develop

* release/v0.0.2:
  bumps version
Allow usage of #new for BitWallet
Rescue InsufficientFunds error when sending money
Ignore .DS_Store
Forgot to add the errors definition
bumps version
Merge branch 'release/v0.0.3' into develop