solved issues 135 and 136

[luissian]

This PR solves the issues:

#135 error page when click on sample
#136 error when upload

[Shettland]

I know it is not related with the issues in mentioned in this PR. But won't this also fail if the fields are not correct? Just so it can be added as a new issue:

relecov-platform/core/utils/samples.py

Lines 131 to 135 in 4e0d7bb

	i_sam_proj_data[key]["format"] = item["sampleProjectFieldType"]
	if item["sampleProjectFieldType"] == "Options List":
	i_sam_proj_data[key]["options"] = []
	for opt in item["sampleProjectOptionList"]:
	i_sam_proj_data[key]["options"].append(opt["optionValue"])

[luissian]

I am not sure to see your concern about it, The query fields are not set by user in the form but inside the code. Why do you think it could fail?