Fix double download

Remove incorrect check which always returns false fixing double downloads.

Download fixes

Tried to fix incomplete / incorrect download handling.

Feature: display ignored packages when checking updates

Updated SBo git URL: https://www.linuxquestions.org/questions/slackware-14/slackbuilds-org-git-and-cgit-services-migrated-to-new-server-4175606019/

New feature: build configuration for individual packages.

Added option to allow build configuration for individual packages in the config file (asbt.conf).

Bug fixes.

Only rename source if downloaded to SRCDIR (thx to DinizBortolotto for the
report).
A depth limited git clone is done when setting up slackbuilds repo.
More stringent check for whether specified argument is a package directory or
a package.

Mostly bugfixes

Fix -n invocation with -P -u.
Fix item count with -q option.
Try to do better package detection with tidy option.

Mostly enhancements and refactoring

Use different method to execute slackbuild when building packages.
Add -e --log,--git options to enlist packages from Changelog and git log.
Allow overriding pause for input using -n for certain options.
Refactor to use global variables in CAPS.

Minor bugfixes and enhancements.

Improvements to -e option.
Changes under the hood.

Mostly changes under the hood.

More changes under the hood (convert to bash, remove bashishs).
Improve package detection in tidy option.
Use same package detection in remove option as in install.

Better package detection + misc changes.

1.6

minor readme changes