added sum methods for CCustomKernel
Declaring method list_memory_allocs() "static" in header instead of definition.
added USE_REFERENCE_COUNTING check in CList unittests to prevent failure when refcounting not used
Merge pull request #2202 from lambday/feature/quadratic_time_mmd

added sum methods for CCustomKernel
Merge pull request #2204 from tklein23/static_linkage_in_definition

Declaring method list_memory_allocs() "static" in header
Merge pull request #2205 from lambday/develop

added USE_REFERENCE_COUNTING check in CList unittests to prevent failure...
cleanups in neuralnets
Travis: fix python3.3 job and coveralls reporting
Merge pull request #2203 from khalednasr/develop

cleanups in neuralnets
Update Dockerfile for trusted build
use latest ubuntu LTS as the base system for the image [ci skip]
Fix path for shogun in Dockerfile [ci skip]
Dockerfile: add shogun-data repository [ci skip]
Another attempt to fix dockerfile for trusted builds [ci skip]
Dockerfile disable colpack and arprec dependencies [ci skip]
yet another try for trusted build [ci skip]
add shogun repo to /shogun from context in docker [ci skip]
Fix python interpreter and library version detection
Enable ccache and caching the output of it on travis
Switch to anaconda when building python3.3
remove caching in travis as it is only available for private repositories
travis: add fast_finish option and fix anaconda path