renaming the artifact id to just image-loader

adding sign + release capabilities

[maven-release-plugin] copy for tag imageloader-parent-1.5.9

[maven-release-plugin] copy for tag imageloader-parent-1.5.8

[maven-release-plugin] copy for tag imageloader-parent-1.5.7

[maven-release-plugin] copy for tag imageloader-parent-1.5.6

[maven-release-plugin] copy for tag imageloader-parent-1.5.5

[maven-release-plugin] copy for tag imageloader-parent-1.5.4

[maven-release-plugin] copy for tag imageloader-parent-1.5.3

[maven-release-plugin] copy for tag imageloader-parent-1.5.2