[DOC][MINOR] Fix 'Drill JDBC Driver' link in jdbc.md
[DOC][MINOR] Fix 'Drill JDBC Driver' link in jdbc.md

### What is this PR for?
This PR is for fixing odd 'Drill JDBC Driver' link in `jdbc.md`

### What type of PR is it?
Documentation

### What is the Jira issue?
Since it's minor fixing, I didn't create a Jira issue for this.

### How should this be tested?
Please just see the attached screenshot images :)

### Screenshots (if appropriate)
 - Before
![screen shot 2016-07-19 at 4 09 13 pm](https://cloud.githubusercontent.com/assets/10060731/16941504/78af23c2-4dcb-11e6-9031-479a98b972a1.png)
 - After
![screen shot 2016-07-19 at 4 09 21 pm](https://cloud.githubusercontent.com/assets/10060731/16941507/7e5ddd40-4dcb-11e6-88c9-86635ab6b974.png)

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

Author: AhyoungRyu <fbdkdud93@hanmail.net>

Closes #1203 from AhyoungRyu/fix/jdbcInterpreterDocs and squashes the following commits:

9f359f8 [AhyoungRyu] Fix dead link
fddd01a [AhyoungRyu] Fix 'Drill JDBC Driver' link

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nJanani/zeppelin,Madhuka/incubator-zeppelin,soralee/zeppelin,prabhjyotsingh/zeppelin,prabhjyotsingh/incubator-zeppelin,SarunasG/zeppelin-oidc,rconline/zeppelin,IceKhan13/zeppelin,chilang/zeppelin,soralee/zeppelin,digitalreasoning/incubator-zeppelin,vrlo/zeppelin,AlexanderShoshin/zeppelin,vgmartinez/incubator-zeppelin,apache/zeppelin,raysteam/zeppelin,cfries/zeppelin,cfries/zeppelin,herval/zeppelin,fogbeam/zeppelin_mirror,cfries/zeppelin,prabhjyotsingh/zeppelin,vrlo/zeppelin,wary/zeppelin,optimizely/incubator-zeppelin,1ambda/zeppelin,chilang/zeppelin,jongyoul/incubator-zeppelin,Leemoonsoo/incubator-zeppelin,zetaris/zeppelin,sravan-s/zeppelin,rconline/zeppelin,karuppayya/zeppelin,optimizely/incubator-zeppelin,YuanGunGun/zeppelin,mwpenny/zeppelin-esri,doanduyhai/incubator-zeppelin,sravan-s/zeppelin,AlexanderShoshin/zeppelin,r-kamath/zeppelin,jongyoul/zeppelin,tinkoff-dwh/zeppelin,raysteam/zeppelin,radicalbit/incubator-zeppelin,minahlee/incubator-zeppelin,prabhjyotsingh/incubator-zeppelin,pravin-dsilva/zeppelin,volumeint/zeppelin,rconline/zeppelin,mfelgamal/zeppelin,minahlee/zeppelin,r-kamath/zeppelin,vgmartinez/incubator-zeppelin,yu74n/zeppelin,rconline/zeppelin,tinkoff-dwh/zeppelin,doanduyhai/incubator-zeppelin,jongyoul/zeppelin,karuppayya/zeppelin,tzolov/incubator-zeppelin,pellmont/zeppelin,tzolov/incubator-zeppelin,lresende/incubator-zeppelin,yu74n/zeppelin,doanduyhai/incubator-zeppelin,wary/zeppelin,mfelgamal/zeppelin,wary/zeppelin,minahlee/zeppelin,apache/zeppelin,minahlee/incubator-zeppelin,datalayer/zeppelin,astroshim/zeppelin,sergeymazin/zeppelin,Altiscale/incubator-zeppelin,datalayer/zeppelin,optimizely/incubator-zeppelin,wary/zeppelin,r-kamath/zeppelin,yu74n/zeppelin,namanmishra91/zeppelin,prabhjyotsingh/zeppelin,datalayer/zeppelin,hkropp/incubator-zeppelin,sravan-s/zeppelin,SarunasG/zeppelin-oidc,onkarshedge/incubator-zeppelin,sohaibiftikhar/zeppelin,pravin-dsilva/zeppelin,SachinJanani/zeppelin,yorek/zeppelin,YuanGunGun/zeppelin,raysteam/zeppelin,fogbeam/zeppelin_mirror,digitalreasoning/incubator-zeppelin,AlexanderShoshin/zeppelin,hammertank/zeppelin,onkarshedge/incubator-zeppelin,mwkang/zeppelin,doanduyhai/incubator-zeppelin,optimizely/incubator-zeppelin,benoyantony/zeppelin,vipul1409/zeppelin,zjffdu/zeppelin,openthings/zeppelin,sergeymazin/zeppelin,astroshim/zeppelin,spacewalkman/incubator-zeppelin,Nova-Boy/zeppelin,sctincman/zeppelin,tillrohrmann/incubator-zeppelin,volumeint/zeppelin,AlexanderShoshin/zeppelin,Altiscale/incubator-zeppelin,soralee/zeppelin,benoyantony/zeppelin,volumeint/zeppelin,Altiscale/incubator-zeppelin,doanduyhai/incubator-zeppelin,wary/zeppelin,radicalbit/incubator-zeppelin,radicalbit/incubator-zeppelin,r-kamath/incubator-zeppelin,spacewalkman/incubator-zeppelin,Madhuka/incubator-zeppelin,hammertank/zeppelin,minahlee/incubator-zeppelin,VipinRathor/zeppelin,tillrohrmann/incubator-zeppelin,Leemoonsoo/zeppelin,prabhjyotsingh/zeppelin,pellmont/zeppelin,Leemoonsoo/zeppelin,mwkang/zeppelin,mwkang/zeppelin,karuppayya/zeppelin,VipinRathor/zeppelin,Nova-Boy/zeppelin,digitalreasoning/incubator-zeppelin,1ambda/zeppelin,astroshim/incubator-zeppelin,minahlee/zeppelin,tillrohrmann/incubator-zeppelin,joroKr21/incubator-zeppelin,sergeymazin/zeppelin,prabhjyotsingh/incubator-zeppelin,sctincman/zeppelin,SachinJanani/zeppelin,datalayer/zeppelin-datalayer,herval/zeppelin,AlexanderShoshin/zeppelin,Leemoonsoo/incubator-zeppelin,soralee/zeppelin,tillrohrmann/incubator-zeppelin,volumeint/zeppelin,Leemoonsoo/zeppelin,jongyoul/zeppelin,apache/incubator-zeppelin,digitalreasoning/incubator-zeppelin,astroshim/incubator-zeppelin,zjffdu/zeppelin,minahlee/zeppelin,Leemoonsoo/zeppelin,tillrohrmann/incubator-zeppelin,vgmartinez/incubator-zeppelin,hammertank/zeppelin,yu74n/zeppelin,mwpenny/zeppelin-esri,jongyoul/incubator-zeppelin,fogbeam/zeppelin_mirror,prabhjyotsingh/zeppelin,mwkang/zeppelin,jongyoul/incubator-zeppelin,sctincman/zeppelin,cquptEthan/incubator-zeppelin,openthings/zeppelin,lresende/incubator-zeppelin,apache/incubator-zeppelin,astroshim/incubator-zeppelin,yorek/zeppelin,IceKhan13/zeppelin,mwpenny/zeppelin-esri,apache/zeppelin,radicalbit/incubator-zeppelin,chilang/zeppelin,joroKr21/incubator-zeppelin,Leemoonsoo/zeppelin,vipul1409/zeppelin,hammertank/zeppelin,r-kamath/zeppelin,sctincman/zeppelin,jongyoul/incubator-zeppelin,astroshim/zeppelin,wary/zeppelin,r-kamath/incubator-zeppelin,prabhjyotsingh/zeppelin,openthings/zeppelin,VipinRathor/zeppelin,lresende/incubator-zeppelin,Nova-Boy/zeppelin,anthonycorbacho/incubator-zeppelin,cfries/zeppelin,soralee/zeppelin,cquptEthan/incubator-zeppelin,r-kamath/incubator-zeppelin,pellmont/zeppelin,zjffdu/zeppelin,apache/zeppelin,SarunasG/zeppelin-oidc,YuanGunGun/zeppelin,Madhuka/incubator-zeppelin,pravin-dsilva/zeppelin,Madhuka/incubator-zeppelin,joroKr21/incubator-zeppelin,Altiscale/incubator-zeppelin,yorek/zeppelin,lresende/incubator-zeppelin,optimizely/incubator-zeppelin,jongyoul/zeppelin,cquptEthan/incubator-zeppelin,mwkang/zeppelin,r-kamath/incubator-zeppel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