Merge branch 'devel' (early part) into production

.gitignore

files/squid/helpers/certificate/Oct15-Oct16/myCA.der

files/squid/helpers/certificate/Oct15-Oct16/myCA.pem

files/squid/helpers/certificate/Oct16-Oct17/myCA.der

files/squid/helpers/certificate/Oct16-Oct17/myCA.pem

files/squid/helpers/certificate/Oct17-Oct18/myCA.der

files/squid/helpers/certificate/Oct17-Oct18/myCA.pem

files/squid/helpers/certificate/Oct18-Oct19/myCA.der

files/squid/helpers/certificate/Oct18-Oct19/myCA.pem

files/squid/helpers/rules.d/cplusplus.rules

files/squid/helpers/rules.d/default.rules

files/squid/helpers/rules.d/dn.rules

files/squid/helpers/rules.d/essa.rules

files/squid/helpers/rules.d/java.rules

files/squid/helpers/rules.d/opendsa.rules

files/squid/helpers/rules.d/python.rules

files/squid/helpers/rules.d/rstudio.rules

files/squid/helpers/rules.d/ruby.rules

files/squid/helpers/rules.d/sas.rules

files/squid/helpers/squid-url-rewrite.py