Release 0.3.0

Fixes:

• Halt on KeyboardInterrupt (#56)
• YAML Format: max line width (#58)
• Rename variable yaml to yaml_format (#59)
• Filter out non-root resources (#61)
• Delete empty descriptors after relocation (#62)

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                                      ((/(,*#%#/.
                                   .(%%**#*
                                  *(#@%%
                  ..,.,,,********,,,,,,
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       ,/*//**,,....(/(/((((((((((((..  .,//*///*******,,**,,
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    ./(((((/*........(####*,(##((, .........**//**,,,,...,,,,,,.
    /(#######(((((#(####/....(#((((/.......,**//**,,,......,.,,,,
   *(#################(..  ../#(####((//////******,.,... ..,..,,..
   (####*,((#########(........((###(((((/*//**//**,,,,,.....,,,,,,
   (#####(,,,,(#######((((((((((((((((////*********,,,,,,...,.,,,,
   /#######*,,.((##(..  ......................******,,,*,,,,,,,,,,
   .(#((####(#.,,..................... ....,**/*******,,,,,,,,,,..
    *((((######((*.,,,,.....((((((//...*************,,,,,,,,,,,,,
     *(((###########(((/,,,,/(((((//(////****/******,,,,,,,,,,,.
      /(((######(##((((((((((((((((((/////***/*****,,,,,,,,,,,.
        /(((#####(#(((#(((((((((((((((///***//****,,*,,,,,,...
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            ...&&%%%#####((((((((((/////////****,*,,,*,..
            .,/(#%&&&@@@@@&%%##((//////**/*****,,,,.
                ..,,,*/////////////////**,,..