Add support for fragments in URL building/parsing.
Merge pull request #70 from craigcitro/fragment

Add support for `fragment` in `parse_url` and `build_url`
Std proj opts
Update to roxygen2 4.0.0
Switch from @S3method to @export
Use latest travis template
Include recent cacert.pem. Closes #67.
Easier way to get RCurl version as useful obj
Option to change oob auth default
First stab at new oauth ref classes
Param to force reinitialisation
Automatically add needed lines to ignore files
Put token in config, rather than signature function
Slightly cleaner token access
Update news
Working on docs
Don't export or document refresh_oauth2.0
Start on documentation token refclass
Move init method to base Token class
Fix typo