added some documentation how to run the tests
replaced version ranges with single versions

allowing only a single version in the package.json's dependencies
minimizes the risk of failures due to incompatible library versions.
Merge pull request #25 from missinglink/parser_error

when a parser initialization error occurs now the software no longer tries to close the not created parser.
adjusted path to Long.min.js file for browserify
set version to v0.5.0
add relation test - only basic access, as details are tested in xmlPbfTest
refactoring: common functions createTagsObject and addInfo
Merge branch 'master' of github.com:marook/osm-read into streams
pull upstream