Adding a gitignore file.
Adding a gitignore file.

The MVN build process creates a bunch of files (ie, the target
directories) that we don't need filling up our source control.

kylerichardson/incubator-metron,dlyle65535/incubator-metron,ottobackwards/incubator-metron,mmiklavc/incubator-metron,jstriley/incubator-metron,dlyle65535/incubator-metron,jjmeyer0/incubator-metron,charlesporter/incubator-metron,iraghumitra/incubator-metron,basvdl/incubator-metron,JonZeolla/metron,mmiklavc/incubator-metron,dlyle65535/incubator-metron,ajayydv/incubator-metron,justinleet/incubator-metron,dlyle65535/incubator-metron,basvdl/incubator-metron,anandsubbu/incubator-metron,kylerichardson/incubator-metron,ottobackwards/metron,mattf-horton/incubator-metron,mattf-horton/metron,kylerichardson/metron,JonZeolla/incubator-metron,apache/incubator-metron,justinleet/metron,mmiklavc/metron,mattf-horton/metron,apache/incubator-metron,ottobackwards/incubator-metron,charlesporter/incubator-metron,justinleet/incubator-metron,mattf-horton/incubator-metron,DomenicPuzio/incubator-metron,JonZeolla/metron,dlyle65535/incubator-metron,mmiklavc/incubator-metron,dlyle65535/metron,zezutom/metron,cestella/incubator-metron,anandsubbu/incubator-metron,mattf-horton/metron,zezutom/metron,nickwallen/incubator-metron,ajayydv/incubator-metron,ottobackwards/metron,apache/incubator-metron,apache/incubator-metron,justinleet/metron,kylerichardson/metron,justinleet/metron,mattf-horton/metron,ottobackwards/metron,mattf-horton/incubator-metron,cestella/incubator-metron,mmiklavc/metron,nsinha17/incubator-metron,jjmeyer0/incubator-metron,cestella/incubator-metron,charlesporter/incubator-metron,mmiklavc/incubator-metron,zezutom/metron,mattf-horton/metron,kylerichardson/incubator-metron,ottobackwards/incubator-metron,JonZeolla/incubator-metron,justinleet/incubator-metron,mmiklavc/incubator-metron,dlyle65535/metron,apache/incubator-metron,mmiklavc/metron,nsinha17/incubator-metron,kylerichardson/metron,mattf-horton/incubator-metron,basvdl/incubator-metron,anandsubbu/incubator-metron,basvdl/incubator-metron,ottobackwards/incubator-metron,justinleet/metron,justinleet/incubator-metron,anandsubbu/incubator-metron,nickwallen/incubator-metron,kylerichardson/metron,anandsubbu/incubator-metron,dlyle65535/incubator-metron,iraghumitra/incubator-metron,jjmeyer0/incubator-metron,nickwallen/metron,zezutom/metron,dlyle65535/incubator-metron,nickwallen/incubator-metron,iraghumitra/incubator-metron,dlyle65535/metron,justinleet/incubator-metron,ottobackwards/metron,nickwallen/metron,nickwallen/incubator-metron,jjmeyer0/incubator-metron,mmiklavc/incubator-metron,nsinha17/incubator-metron,JonZeolla/incubator-metron,apache/incubator-metron,anandsubbu/incubator-metron,jstriley/incubator-metron,nickwallen/metron,nickwallen/metron,mmiklavc/metron,justinleet/metron,DomenicPuzio/incubator-metron,nsinha17/incubator-metron,zezutom/metron,nickwallen/metron,JonZeolla/incubator-metron,kylerichardson/incubator-metron,mattf-horton/metron,nickwallen/metron,justinleet/incubator-metron,nsinha17/incubator-metron,kylerichardson/incubator-metron,cestella/incubator-metron,JonZeolla/incubator-metron,kylerichardson/incubator-metron,DomenicPuzio/incubator-metron,jstriley/incubator-metron,mmiklavc/metron,dlyle65535/metron,ottobackwards/incubator-metron,DomenicPuzio/incubator-metron,mattf-horton/incubator-metron,ajayydv/incubator-metron,nsinha17/incubator-metron,JonZeolla/metron,mattf-horton/incubator-metron,ajayydv/incubator-metron,mmiklavc/metron,cestella/incubator-metron,JonZeolla/incubator-metron,jjmeyer0/incubator-metron,JonZeolla/incubator-metron,dlyle65535/incubator-metron,iraghumitra/incubator-metron,mattf-horton/incubator-metron,justinleet/incubator-metron,basvdl/incubator-metron,ottobackwards/incubator-metron,ajayydv/incubator-metron,mattf-horton/metron,jjmeyer0/incubator-metron,dlyle65535/metron,jstriley/incubator-metron,nickwallen/incubator-metron,nickwallen/incubator-metron,basvdl/incubator-metron,JonZeolla/incubator-metron,kylerichardson/incubator-metron,basvdl/incubator-metron,iraghumitra/incubator-metron,nsinha17/incubator-metron,justinleet/incubator-metron,DomenicPuzio/incubator-metron,ottobackwards/incubator-metron,kylerichardson/metron,ottobackwards/incubator-metron,mattf-horton/metron,nickwallen/incubator-metron,iraghumitra/incubator-metron,justinleet/incubator-metron,zezutom/metron,nsinha17/incubator-metron,anandsubbu/incubator-metron,mattf-horton/incubator-metron,JonZeolla/metron,ottobackwards/metron,ottobackwards/incubator-metron,jstriley/incubator-metron,cestella/incubator-metron,dlyle65535/metron,mmiklavc/incubator-metron,ajayydv/incubator-metron,dlyle65535/incubator-metron,mattf-horton/incubator-metron,justinleet/metron,mmiklavc/incubator-metron,apache/incubator-metron,zezutom/metron,JonZeolla/incubator-metron,mmiklavc/metron,kylerichardson/metron,jjmeyer0/incubator-metron,nickwallen/incubator-metron,nickwallen/metron,basvdl/incubator-metron,charlesporter/incubator-metron,justinleet/metron,cestella/incubator-metron,jjmeyer0/incubator-metron,charlesporter/incubator-metron,kylerichardson/incubator-metron,nickwallen/incubator-metron,anandsubbu/incubator-metron,JonZeolla/metron,iraghumitra/incubator-metron,cestella/incubator-metron,ottobackwards/metron,dlyle65535/metron,DomenicPuzio/incubator-metron,JonZeolla/metron,mmiklavc/incubator-metron,ottobackwards/metron,jstriley/incubator-metron,JonZeolla/metron,ajayydv/incubator-metron,justinleet/metron,jstriley/incubator-metron,ottobackwards/metron,dlyle65535/metron,ajayydv/incubator-metron,DomenicPuzio/incubator-metron,kylerichardson/metron,charlesporter/incubator-metron,charlesporter/incubator-metron,nickwallen/metron,zezutom/metron,JonZeolla/metron,charlesporter/incubator-metron,jstriley/incubator-metron,iraghumitra/incubator-metron,kylerichardson/metron,DomenicPuzio/incubator-metron,mmiklavc/metron,zezutom/metron,apache/incubator-metron,dlyle65535/metron,basvdl/incubator-metron,apache/incubator-metron