build `rpm` packages

Created by: ghost

this shouldn't break the existing build system as deb build functionality remains as linux32 and linux64 and rpm was added as rpm32 and rpm64

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• https://github.com/gitterHQ/gitter/issues/1283
• https://github.com/gitterHQ/gitter/issues/1196

Created by: mbohun

The download link is clearly misleading/deceptive: https://update.gitter.im/linux64/latest Linux is NOT ubuntu/debian.

Created by: mbohun

The download link is clearly misleading/deceptive: https://update.gitter.im/linux64/latest Linux is NOT ubuntu/debian.

Created by: tanaka-takayoshi

Why does this PR keep unmerged? Is there any reason why the owner avoid building rpm package?

Created by: tanaka-takayoshi

Why does this PR keep unmerged? Is there any reason why the owner avoid building rpm package?

mentioned in merge request !196