[IMPROVE] Modify naming convention of channels on RC server

[RonLek]

In the future, we plan on making communities have custom names instead of naming them corresponding to the repository associated with them as we now do. For this we need to change the naming convention of communities on the RocketChat server.

In the updated naming convention we plan on appending the user/org name to channel names instead of prepending them as we do currently.

For example, instead of RonLek_RC4Community, the communities would be renamed on the RC server to RC4Community_RonLek.

This step would:

1. Increase ease of renaming after community creation.
2. Enable us to append other suffixes. For example, for non-repo linked communities RC4Community_RonLek_Other.