preparing changes for individual sum feature

reorders processing of arguments (help text first)

fixes error message when directory access fails

adds simple tiny test suite and updates license headers

adds test file skeleton to build system

adds more autogenerated files to .hgignore

regex parser was not properly reset before each file, sometimes resulting in wrong line counts, when the previous scanned file ended with a match

adds autoconf generated files to .hgignore and adds note in README file

Adds search for lregex to allow linkage under msys/mingw + removes files that can be rebuilt by autoreconf

fixes compiler flags

fixes headers missing in dist package

adds *.in files

(0) -12 +12 tip

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