Bug fixes and undocumented endpoint addes

• 105b7c9 station feed wrapper Luis Ezcurdia
• a937425 specify ruby required version Luis Ezcurdia
• 7c2bde1 minor parsing corrections Luis Ezcurdia
• 4e30065 add usage on readme Luis Ezcurdia
• c7bf946 clearup args Luis Ezcurdia
• 066c736 create stations service Luis Ezcurdia