version.mk: Update

We have defined a particular account to be uploaded, but for backwards compatibility we maintain the DEVELOPER as a enviorment variable on Jenkins so diego can upload their CM-10 builds :).

Since CM-10 haven't been updated but yet still buildable on our Jenkins, we maintain this value as selectable when building (current alernatives are STEAndroid and diego's account)

They are still uploaded to both accounts for people who can complain.

Do not define a cm_ before TARGET PRODUCT, is going to output cm_cm_device, we don't want that

board string should be PRODUCT_MODEL because we want to maintain backwards compatibility with older ROMs, and this should make our device with "Browse compatible ROMs" in any ROM

version should be BUILD_VERSION because it's a enviorment variable of jenkins reflecting the build numbers, if we build a newer janice version ie, build number should be current ROM BUILD_VERSION+2, since we build janice and then janicep :)