[136 dev2] minor compile warnings should be cleaned up

possible loss of data due to type conversion from 'double' to 'int' test.mq5 477 13
possible loss of data due to type conversion from 'double' to 'int' test.mq5 481 13
possible loss of data due to type conversion from 'double' to 'int' test.mq5 493 19
possible loss of data due to type conversion from 'double' to 'int' test.mq5 497 23
variable '_orderType' not used test.mq5 469 8
variable '_ticket' not used test.mq5 469 20
variable '_temp' not used test.mq5 469 29