zeppelin git commit: [ZEPPELIN-1810] Removed incorrect usage of getString

[mo...@apache.org]

Repository: zeppelin
Updated Branches:
  refs/heads/master e19e47c8c -> 44c800f09


[ZEPPELIN-1810] Removed incorrect usage of getString

### What is this PR for?
The changes in the fix for https://issues.apache.org/jira/browse/ZEPPELIN-1319 introduced a bug which makes setting path to keystore and truststore impossible from zeppelin-site.xml.
The reason seems to be an incorrect use of getString() here
https://github.com/apache/zeppelin/pull/1319/files#diff-69b17249ac9d265091d730130d973f4aR282
and here
https://github.com/apache/zeppelin/pull/1319/files#diff-69b17249ac9d265091d730130d973f4aR311
There should be no getString there, just "path" as it is.

### What type of PR is it?
Hot Fix

### Todos
* [x] - Task

### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-1810

### How should this be tested?
Before this fix:
In `zeppelin-site.xml`
* setting `zeppelin.ssl` to `true`
* setting `zeppelin.ssl.keystore.path` to a relative path to a keystore (technically it doens't have to exist at all)
* setting `zeppelin.ssl.truststore.path` to a relative path to a truststore Zeppelin

Now Zeppelin won't start. In the log you can read something like
```WARN [2016-12-14 13:55:45,522] ({main} AbstractLifeCycle.java[setFailed]:212) - FAILED SslContextFactory8f2098e(/home/firearrow/zeppelin/incubator-zeppelin/conf/null,/home/firearrow/zeppelin/incubator-zeppelin/conf/null): java.io.FileNotFoundException: /home/firearrow/zeppelin/incubator-zeppelin/conf/null (No such file or directory)```

With this fix the correct path is resolved

Edit: Proof reading and formatting fixes
### Screenshots (if appropriate)
N/A

### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No

Author: FireArrow <de...@kth.se>

Closes #1762 from FireArrow/ZEPPELIN-1810] and squashes the following commits:

0482a84 [FireArrow] Removed incorrect usage of getString


Project: http://git-wip-us.apache.org/repos/asf/zeppelin/repo
Commit: http://git-wip-us.apache.org/repos/asf/zeppelin/commit/44c800f0
Tree: http://git-wip-us.apache.org/repos/asf/zeppelin/tree/44c800f0
Diff: http://git-wip-us.apache.org/repos/asf/zeppelin/diff/44c800f0

Branch: refs/heads/master
Commit: 44c800f0921efad254dc92a4ca1fc6c9f1dac3ee
Parents: e19e47c
Author: FireArrow <de...@kth.se>
Authored: Wed Dec 14 15:46:44 2016 +0100
Committer: Lee moon soo <mo...@apache.org>
Committed: Mon Dec 19 10:04:18 2016 -0800

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 .../java/org/apache/zeppelin/conf/ZeppelinConfiguration.java     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/zeppelin/blob/44c800f0/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java
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diff --git a/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java b/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java
index 2e48a1f..db9bf33 100644
--- a/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java
+++ b/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java
@@ -291,7 +291,7 @@ public class ZeppelinConfiguration extends XMLConfiguration {
       return getRelativeDir(
           String.format("%s/%s",
               getConfDir(),
-              getString(path)));
+              path));
     }
   }
 
@@ -320,7 +320,7 @@ public class ZeppelinConfiguration extends XMLConfiguration {
       return getRelativeDir(
           String.format("%s/%s",
               getConfDir(),
-              getString(path)));
+              path));
     }
   }