Add pigz repository

 * pigz is an optimized gzip which uses multiple cores
 * We're using pigz for compressed Nandroid support in recovery

Change-Id: I87c5d2f9b67e7104c75460279eb640fdfa99d9b7
Add spongycastle

Change-Id: Ifabb9446e14468f1e376d3da9ada2f94369a3284
Merge branch 'cm-10.2' of https://github.com/CyanogenMod/android into DJL10.2

Conflicts:
	default.xml

Change-Id: I8bc838f840ac94b04daf75b99c31ef0b90fc6a44