rAltmetric 0.7.9000

Updated package after a super long time to using httr instead of RCurl
Simplfied converting lists → data.frames
Added support for ISBN and URIs
Removed plot method since it was not useful or generalizable to various identifiers

rAltmetric 0.6

Several bug fixes and documentation updates

rAltmetric 0.5

Removed hard dependencies and moved them to imports
Minor bug fixes

rAltmetric 0.3

Initial release to CRAN