#1810 replace with HTTP

pom.xml

src/main/assemblies/files/fess.in.bat

src/main/assemblies/files/fess.in.sh

src/main/java/org/codelibs/fess/Constants.java

src/main/java/org/codelibs/fess/api/es/EsApiManager.java

src/main/java/org/codelibs/fess/es/client/FessEsClient.java

src/main/java/org/codelibs/fess/exec/Crawler.java

src/main/java/org/codelibs/fess/exec/SuggestCreator.java

src/main/java/org/codelibs/fess/exec/ThumbnailGenerator.java

src/main/java/org/codelibs/fess/job/CrawlJob.java

...main/java/org/codelibs/fess/job/GenerateThumbnailJob.java

src/main/java/org/codelibs/fess/job/SuggestJob.java

src/main/resources/fess_config.properties