update travis config and README

Author: xSAVIKx

.travis.yml

@@ -1,10 +1,10 @@
----
 language: java
 
 branches:
   only:
   - master
 
 jdk:
-  - openjdk7
-  - oraclejdk7
+  - oraclejdk8
+
+script: mvn clean install

README.md

@@ -70,6 +70,4 @@ So, right now AndroidScreencast support all Android versions equal or greater th
 
 Also, to run AndroidScreencast you will need *adb* installed (or you can use bundled in OS bundles adb).
 
-[Android_4_1_1_Input]: http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.1.1_r1/com/android/commands/input/Input.java#Input
-
-[latest_release]: https://github.com/xSAVIKx/AndroidScreencast/releases/latest
+[Android_4_1_1_Input]: http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.1.1_r1/com/android/commands/input/Input.java#Input