Fixes from coverity check
Fix some warnings from static analysis
Fixed a minor overrun chance
Upgrade autotools
Added linear gamma to unbounded mode capable
Get rid of dummy NEWS file
Added ABGR formatter
Richard Hughes additions
Fix for multitherad opt
Updated BPC algorithm
Cosmetic: fix some typos.
Merge pull request #11 from Underground78/typo_fix

Great job, I'm pulling it.. thanks!