0.10.2: Merge pull request #94 from rage/split-points

• moved functionality from CLI binary to libraries
• improved C project detection (require src in addition to Makefile)
• removed merging of course options in refresher
• skip only metadata.yml instead of any file that contains "metadata.yml" in the name in submission preparation (regex metadata.yml -> ^metadata\.yml$
• split the contents of points annotations by whitespace and consider each resulting piece to be a separate point