update .travis.yml to allow for failures on hhvm and nightly builds

update download instructions once and for all, to be always updated

merge virtual columns support. Closes ifsnop#107

get MySQL version on travis

remove duplicated code

dump user procedures
bug: lower case option names, not parameters

added visibility definition to method

Privilege fix, no more SUPER privilege needed

Added port settings to connection string
Some warnings suppressed
Added skip-comments and skip-dump-date

Merge branch 'master' of https://github.com/gwarnants/mysqldump-php i…

…nto gwarnants

Merge branch 'devel' (new options, enhanced compatibility, reduced co…

…mplexity...)

Merge pull request ifsnop#67 from ifsnop/devel

merge devel branch