OBS architecture naming

Repository naming convention
OBS has possibility to have multiple architectures compiled within one repository like shown below:

 i486 i586 armv6el armv7el armv8el

For Mer, however as we have only one architecture compiled in one repository, we can't use the repository structure shown above, but we need to have one repository per archtiecture. To prevent big mess with naming, it is recommended to follow the following naming convention with the repositories that are used to compile against Mer. The repository name consists of latest_ or next_, depending if you build against latest or next Mer release repositories. After this comes the portname, see table below. Example of this in obs meta prj XML format is shown below:

  armv8el ...   i586