Fix SHA1 package verification under Cygwin Env. Resolve #26
Fix SHA1 package verification under Cygwin Env. Resolve #26

aphelps/platformio,bkudria/platformio,aphelps/platformio,mseroczynski/platformio,jrobeson/platformio,eiginn/platformio,awong1900/platformio,jrobeson/platformio,TimJay/platformio,TimJay/platformio,valeros/platformio,TimJay/platformio,ZachMassia/platformio,platformio/platformio-core,mplewis/platformio,bkudria/platformio,mcanthony/platformio,jrobeson/platformio,awong1900/platformio,bkudria/platformio,dkuku/platformio,aphelps/platformio,awong1900/platformio,atyenoria/platformio,bkudria/platformio,aphelps/platformio,TimJay/platformio,jrobeson/platformio,TimJay/platformio,platformio/platformio-core,platformio/platformio