"Trim Reads by Quality" doesn't work with PHRED64 quality values

We have sample NGS data from illumina iDEA, that have PHRED+64 quality format. When you try to trim these reads by quality, you get wrongly trimmed reads.

I think we should do following steps:

• Add new parameter "Encoding format" to "Trim Reads by Quality" workflow element (GUI part)
  • Description of this parameter: "Phred quality score encoding format"
  • By default this parameter should have value "auto" (for autodetecting of encoding format)
  • Others values should be (more info):
    1. Phred+33
    2. Phred+64
    3. Solexa+64 (it may be not needed)
• Add autodetection of encoding format for .fastq file (example see here)
• Add trimming with Phred+64 quality values