fix(gdev): add constant tx fees (2 cents by tx) to prevent #62

Fix #62 (closed)

end2end-tests/cucumber-features/account_creation.feature

@@ -25,4 +25,16 @@ Feature: Balance transfer
     The blockchain should automatically withdraw account creation tax (3 ĞD)
     """
     Then eve should have 2 ĞD
-    
+
+  @ignoreErrors
+  Scenario: Create a new account without any founds
+    Then eve should have 0 ĞD
+    When eve send 0 ĞD to alice
+    Then alice should have 10 ĞD
+    When alice send 5 ĞD to eve
+    Then eve should have 5 ĞD
+    When 1 block later
+    """
+    The blockchain should automatically withdraw account creation tax (3 ĞD)
+    """
+    Then eve should have 2 ĞD