Gave tester a fat starting balance like it had pre refactor

Author: joeykrug

ethereum/tools/tester.py

@@ -24,7 +24,7 @@
 base_alloc = {}
 minimal_alloc = {}
 for a in accounts:
-    base_alloc[a] = {'balance': 10**18}
+    base_alloc[a] = {'balance': 10**24}
 for i in range(1, 9):
     base_alloc[int_to_addr(i)] = {'balance': 1}
     minimal_alloc[int_to_addr(i)] = {'balance': 1}