Update loading.rst

VEP file structure was confusing. I change it in the format that GEMINI accepts it.
Merge pull request #247 from oliviamr/patch-1

Update loading.rst
updated unit tests for clinvar
unit test update for new additions to variant table:fix q10-12
Merge pull request #248 from udp3f/master

Unit test fixes
gene tables added to GEMINI
anno-provenance for gene table
new additions:summary gene table & detailed gene table
add gene tables to table info
load gene tables
package gene tables for install
unit tests for gene tables
Merge pull request #249 from udp3f/master

Gene table in GEMINI
bug fix for lof_sieve
Merge pull request #252 from udp3f/master

bug fix for lof_sieve
run unit test for lof_sieve
unit test for lof-sieve
Merge pull request #253 from udp3f/master

unit test for lof-sieve
Update requirements.txt
[BUG] create gene_* tables when using multiple cores