Fixes on transaction
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Merge pull request #18 from Evaneos/cot-299-transaction-fixes

Fixes on transaction
Class btn-disabled
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Merge pull request #19 from Evaneos/buttons

Btn disabled class
Quick fix for Jonathan
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Adding helper classes
[Fix] evFixedHeader directive and header with margin
[Fix] btn-link style
[upload] adding the possibility to cancel upload & now rejected promise get a reason string
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