v118-preview

New things:

• Andy added support for multiple trackDbs in hg.conf to hdb.c.
• Brian added support for 2bit in chainToPsl.c.
• Angie added a new trackDb setting "notNCBI" which inhibits links back to NCBI in doLinkedFeaturesSeries.
• Kate has changes to src/hg/lib/trackDbCustom.c to improve inheritance of composite config by subtracks.
• Mark added a database advisory lock to gbLoadRna.
• Rachel has a new utility src/hg/lfsOverlap/lfsOverlap.c which removes overlapping records from a linked feature series file.
• Andy has a new Perl utility to download RTDB.
• Heather has a new utility snpMaskFlank.c (a refactoring of snpMaskGenes.c).

Bug fixes:

• Angie has a bug fix to gfServer.c.
• Galt has browser specific bug fixes for hgVisiGene/bigImage.html.

Speed up:

• Angie has a speedup for clade queries in hdb.c.
• Mark has a speedup in loadTrackDbs in hdb.c.

Data:

• Angie committed makeDm2.doc.
• Galt finished bosTau1 to bosTau2 liftOver.
• Brian added human proteins for danRer3.
• Kate finished ENCODE downloads.
• Daryl finished Tajima's D for hg17.
• Andy did repeats for strPur1.
• Hiram has edits to makeMm7.doc.
• Ann has numerous trackDb HTML edits.