Use correct preprocessor define (__arm__ vs __ARM__) to detect compilation for ARM architecture CPUs.

Allocate 512MB of address-space instead of 1GB for memory objects on 32-bit. This allows the test scripts to have more than one around at a time without exhausting 2GB of user address-space.

Fix crash when deleting a partially initialized MemoryInstance after its address-space allocation fails

Explicitly trap on (INT_MIN / -1) to ensure LLVM DCE or constant folding doesn't eliminate the trap.

WASM globals are disparate from WASM linear memory. Similar to how we reset linear memory after each invocation, we need to reset globals as well.

Linear memory is optional in WASM. Protect against crashes when a WASM doesn't use it.

add abi test for post recovery, pass recovery, veto recovery, set abi, set code, nonce native contract action

properly use the account for read locks in data accesses, rename some "scopes" to locks where appropriate

Previously, the WASM "start" function would be called once right after compilation. This was problematic for two reasons. 1) It was called during a period of time not expected (not during any context), and 2) if the user was expecting the start function to be called for initialization it would not be called after the memory had been reset on subsequent apply() calls -- that could be a surprise.

Now call the WASM "start" function before each init() and apply().

@DAWN-390 fixed issue with sbrk not clearing between actions, and added page resizing to cache checkin to ensure page size goes back to default

rename scopes to locks from the perspective of the contracts, add account to the locks in shards and then deal with all the problems that caused

removed scope from transaction
renamed scope on action to account
added scopes to shard
fixed up scheduling and tests
fixed up eosioc

Resolves #1065.