Initial implementation of Sadakane's proposal
Read input line by line.
Restricted to top-k
fixes...
Merge branch 'doc_list_idx' of github.com:simongog/sdsl-lite into doc_list_idx
Revert "fixes..."

This reverts commit 1c8ecdabf9595ce5f0274af4b68e872b86dfa664.
added greedy and qprobing
Merge branch 'doc_list_idx' of github.com:simongog/sdsl-lite into doc_list
Fixed qualifier.
added fixes and sanity checks. something is still not right with the sada method
millisecs -> microsecs
Merge branch 'doc_list_idx' of github.com:simongog/sdsl-lite into doc_list_idx
Listed docs are now also sorted according to doc_id
Moved files around
Adpated Makefile
Merge branch 'master' into doc_list_idx
Merge branch 'master' into doc_list_idx
Added url's for test cases.
Fixed calculation of alphabet size.
Updated visualization for integer indexes.