Previously, the test waited a second and then failed if geth had not
started. This caused the test to fail intermittently. This change checks
whether the IPC is open 10 times over a 5 second period and then fails
if geth is still not available.
USB enumeration still occured. Make sure it will only occur if --usb is set.
This also deprecates the 'NoUSB' config file option in favor of a new option 'USB'.
* trie: fix tests to work on 32-bit systems
* les: make test work on 32-bit platform
* cmd/geth: fix windows-issues on tests
* trie: improve balance
* cmd/geth: make account tests less verbose + less mem intense
* rpc: make debug-level log output less verbose
* cmd/geth: lint
