BI-419 - Allow to extract supported formats using file specs

Author: eyalbe4

Diff for: README.md

@@ -14,6 +14,8 @@ export BITESTS_ARTIFACTORY_USERNAME=admin
 export BITESTS_ARTIFACTORY_PASSWORD=password
 export BITESTS_ARTIFACTORY_REPO=tests
 ```
+Before running the tests, please make sure you have a generic repository named *tests* in Artifactory.
+
 To build the code using the gradle wrapper in Unix run:  
 ```
 > ./gradlew clean build
@@ -26,7 +28,7 @@ To build the code using the environment gradle run:
 ```
 > gradle clean build
 ```
-To build the code without tests, add to the "clean build" command the flag "-x test", for example:
+To build the code without running the tests, add to the "clean build" command the "-x test" option, for example:
 ```
 > ./gradlew clean build -x test
 ```

Diff for: build-info-extractor/src/test/resources/specs/integrationTestSpecs/downloadTest-specDownloadExplode.json

@@ -4,7 +4,7 @@
       "explode": "true",
       "aql": {
         "items.find": {
-          "repo": "tests",
+          "repo": "${REPO}",
           "@*": {
             "$nmatch": "*"
           },

Diff for: build-info-extractor/src/test/resources/specs/integrationTestSpecs/uploadTest-downloadSpec.json

@@ -3,7 +3,7 @@
     {
       "aql": {
         "items.find": {
-          "repo": "tests",
+          "repo": "${REPO}",
           "@*": {"$nmatch" : "*"},
           "$or": [{
             "$and": [{