Update Gradle and build configuration, add support for customizations

• Gradle and build configuration updated
• Configuration for customizations added
• Unused code removed

Fix target for lib directory

RELEASE_5.5.1

Merge pull request #78 from IntershopCommunicationsAG/fix_package_lib…

Rework CollectLibraries, Cartridgelist tasks removed

RELEASE_5.5.0

Merge pull request #76 from IntershopCommunicationsAG/rework_collectL…

Release 5.4.4

Refactor: Added HTTP request timeout to HttpProbe

add ismlsoujrces jar for publishing if necessary and available

Merge pull request #75 from IntershopCommunicationsAG/fixismlsources

fix: add ismlSourcesJar for publishing

RELEASE_5.4.2

Limit the length of clusterID to 28 chars

RELEASE_5.4.1

Limit the length of clusterID to 28 chars

ISML dependency removed

RELEASE_5.4.0

Merge pull request #72 from IntershopCommunicationsAG/remove_ism_depe…

Bugfixes for 5.3.0

• fixed ClassCastException when using probes

Extended probe support

• Feature: introduced SocketProbe (additionally to existing HttpProbe)
• Bugfix: task writeCartridgeDescriptor now fails on dependency revolve errors