Added a functional test for reissue
Added a functional test for reissue

The test does the following:
    1. Create a new order
    2. Force approval of the order
    3. Do the reissue and verify the response
    4. Query the order to verify the cert status is PENDING_REISSUE

Unfortunately, forcing approval seems to take between 5 and 15
    minutes for the API to complete.

glyph/symantecssl,chelseawinfree/symantecssl,jmvrbanac/symantecssl,cloudkeep/symantecssl,grigouze/symantecssl