migrate table to fund_sources
rename withdraw address to fund source
submit withdraw to channel, not currency withdraw.
rebuild controller organization
fixed guide i18n, fixed coin deposit
refactoring deposit controller
add deposit namespace
add FSM to deposit
Rename, Rename.... and rebuild withdraws_controller
Save FundSource when creating Withdraw if asked
Fixed withdraw's fee calculation
Read value from config yml when calc withdraw fees
Use subclass of WithdrawChannel
Fixed selectize of withdraw
Fix withdraw's admin page
Remove fund_sources' account_id column
Filter withdraws by channel instead of currency
Fixed withdraw spec
remove redundant files
Fix Kaminari link of next page