MQ2AASpend - Minor Cleanup

• Remove using namespace std
• Remove need for pragma disable
• Move pulse variables into OnPulse callback
• Change initial load chat output to be minimal
• Remove some of the unused variables
• Move global command buffer to locals
• Individual functions now either have space or tab indent, but not both
• Replace NULL
• Consolidate command function to need less returns
• Remove some of the else after returns