Merge pull request #4 from boostorg/develop

cleanup
Merge pull request #5 from boostorg/develop

Develop
removed doc/html
removed doc/html
Merge pull request #7 from boostorg/vladimir

removed doc/html
Merge pull request #6 from boostorg/develop

Develop
removing auto-generated and unnecessary files
merged
Merge pull request #8 from boostorg/vladimir

Vladimir
exluded log files
Merge branch 'develop' of https://github.com/boostorg/convert into vladimir
cleanup
cleanup
Merge branch 'develop' of https://github.com/boostorg/convert into develop
Merge branch 'develop' of https://github.com/boostorg/convert into develop
Merge branch 'develop' of https://github.com/boostorg/convert into develop
Merge pull request #9 from boostorg/develop

Develop
added default converter
renamed the def. converter to cnv::by_default
docs