fix error logging in init
fix logging of numberformat exception in init
adapt new lucene-plugin to compile against xwiki 2.7.2
fix scm configuration in celements/xwiki-platform-search-lucene project
[maven-release-plugin] prepare release xwiki-platform-search-lucene-2.0
[maven-release-plugin] prepare for next development iteration
add debug logging for onEvent in IndexUpdater
[maven-release-plugin] prepare release xwiki-platform-search-lucene-2.1