Merge branch 'master' into develop
Update README
Revert "Update README"

This reverts commit 4dfed12be17c10d0161c51eca0b38369e93023d4.
Fix broken -m(--mapfile option)
Build fix
Merge branch 'hotfix-for-broken-mapfile-option' into release-1.4
Bump version
Merge branch 'release-1.4'
Update NEWS
Merge branch 'master' into develop
Kill bashizm

'=' operator for test(1) is not portable.
Style fixes
Merge branch 'hotfix-kill-bashism-2nd' into release-1.4
Update NEWS
Update ChangeLog
Bump version
Merge branch 'develop' into release-1.4
Move a long case statement to a new function
Replace integer literals 32768 to 'maxcolors'
Fix tests for some environments that have not getopt_long