Msstitch

Changed
- Not querying SQLite for each feature/MS2 quant in msslookup quant, instead keep all data for given spectra file in memory, hopefully this speeds things up
Fixed
- --noncentric flag for building combined output tables did not work if there was not a protein table in the lookup file. Now possible.

Changed
- Can now build lookups of multiple protein/gene/peptide tables without the nr-of-psms used for isobaric quant, to allow for other quant methods
- Output merged protein/gene tables with all mappings. Whereas protein tables earlier also got gene IDs and gene names, the reverse now is also true
Fixed
- Header names in merged tables are now not only "Protein accession" anymore, but in case of e.g. ENSEMBL gene IDs the table is called gene ID
- Bug fixed, in merged tables we could get eg last line containing a protein with only NAs because it was not checked if the last merged feature was "empty"

Fixed
- Bug fixed, now possible to load protein/gene/peptide tables in sqlite without storing "number of quanted PSMs"

Fixed
- Bug fixed where isobaric databases would also result in skipping the last line of the PSM table when running `msspsmtable quant`

Fixed
- Bug fixed where precursor-quant-only databases would result in skipping the last line of the PSM table when running `msspsmtable quant`

Fixed
- Bug which was not completely fixed in 2.7, now add NA correctly to all fields