leave build dir before we remove it
fix fetching 'options' from self.cfg in ExtensionEasyblock
correct error reporting when processing easyconfig fails
fix sanity check for ExtensionEasyblock
load module before running test cases
Merge pull request #436 from boegel/v1.1.x

various fixes for relative minor issues
only load (and clean up) fake module for non-extensions
Merge pull request #437 from boegel/v1.1.x

only load (and clean up) fake module for non-extensions
fix handling of extension sanity checks
change directory before running sanity check
use lowercase name for extension sanity check
fix missing import
support use of custom_paths/custom_commands
don't enforce use of lower-case name for extension sanity check
allow skipping of default module sanity check
change condition for easyblock vs easyconfig
Revert "change condition for easyblock vs easyconfig"

This reverts commit 2f0eb070918952270e4281371b2ef2e62215a76b.
bump version to v1.1.0, update release notes
minor addition to release notes
minor clarification in release notes