Added how to add pre-commit hook for clang-format to README.
Merge pull request #125 from murrekatt/develop

Added how to add pre-commit hook for clang-format to README.
remove /*=NULL*/ comments

Command used:
    sed -r -i 's|/\*=NULL\*/||g' "$file"
Merge pull request #127 from toxeus/removeNullComment

Good job, next ;)
define EXPORT makro in build system