Updated install instructions

AndroidSlidingUpPanel @ 79c685fa

-Subproject commit dfadd813d4692b69023899c29cf6c6593ac55b9d
+Subproject commit 79c685faea4697a4036d3fc8d232fbec5cf578ca

INSTALL.md

+Build Guide
+===========
+
+First build libraries:
+
+```
+cd AndroidSlidingUpPanel
+gradle build
+```
+
+```
+cd aspm
+gradle shadowJar
+```
+
+Then copy or link the files at the appropriate places:
+
+```
+cp aspm/annotations/build/libs/annotations.jar app/libs/
+cp aspm/compiler/build/libs/compiler-all.jar app/libs/
+cp AndroidSlidingUpPanel/library/build/outputs/aar/library-release.aar app/libs/
+```
+
+Then invoke gradle for the main project:
+
+```
+gradle assembleRelease
+```

app/libs/annotations.jar

+../../aspm/annotations/build/libs/annotations.jar
\ No newline at end of file

app/libs/compiler-all.jar

+../../aspm/compiler/build/libs/compiler-all.jar
\ No newline at end of file

app/libs/library-release.aar

+../../AndroidSlidingUpPanel/library/build/outputs/aar/library-release.aar
\ No newline at end of file