Revert "HBASE-11805 KeyValue to Cell Convert in WALEdit APIs."

This reverts commit 3f6a44b98cdf4a6dc28a713bc70e4f5bb03ff36e.
Remove PoolMap#remove(K,V) for Java 8
Remove XX:MaxPermSize from JVM arg lists
Local localhost test configuration
Path changes for MacOSX
Add options for JDWP debugging; resize default RS heap to 1g
liblagent path change for MacOSX