Change edge index. Compiles but does not work yet.
pacified jslint
Repair graphs with new edge index.
Take out some diagnostics.
logfile opening/closing fixes
simplified usage of arango-statement
speed up CRC calculation

measured speedup on an x86_64 Linux
-----------------------------------

clang, -O2, without patch:
* 5,000,000x CRC of a 256 byte buffer: TOOK: 0.858567
* 5,000,000x CRC of a 512 byte buffer: TOOK: 1.67744
* 5,000,000x CRC of a 1024 byte buffer: TOOK: 3.31552
* 5,000,000x CRC of a 2048 byte buffer: TOOK: 6.58735
* 5,000,000x CRC of a 4096 byte buffer: TOOK: 13.1924

clang, -O2, with patch
* 5,000,000x CRC of a 256 byte buffer: TOOK: 0.669745
* 5,000,000x CRC of a 512 byte buffer: TOOK: 1.3234
* 5,000,000x CRC of a 1024 byte buffer: TOOK: 2.63565
* 5,000,000x CRC of a 2048 byte buffer: TOOK: 5.26927
* 5,000,000x CRC of a 4096 byte buffer: TOOK: 10.6086

gcc, -O2, without patch:
* 5,000,000x CRC of a 256 byte buffer: TOOK: 0.752911
* 5,000,000x CRC of a 512 byte buffer: TOOK: 1.46402
* 5,000,000x CRC of a 1024 byte buffer: TOOK: 2.88934
* 5,000,000x CRC of a 2048 byte buffer: TOOK: 5.74819
* 5,000,000x CRC of a 4096 byte buffer: TOOK: 11.4839

gcc, -O2, with patch:
* 5,000,000x CRC of a 256 byte buffer: TOOK: 0.643093
* 5,000,000x CRC of a 512 byte buffer: TOOK: 1.20488
* 5,000,000x CRC of a 1024 byte buffer: TOOK: 2.39155
* 5,000,000x CRC of a 2048 byte buffer: TOOK: 4.75178
* 5,000,000x CRC of a 4096 byte buffer: TOOK: 9.34864
added more tests for CRC32
Merge branch 'devel' into associative_tests
Use UNIX line endings in xxhash.
Switch off authentication in relative configuration.
Sort out internal statistics and polish future pair stuff.
Buf fix in positioning the cursor at the begin of the next line
separated FNV hashing functions
 finished router tests and reformated test files
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into devel
navigation in editing line works fine
Revert " finished router tests and reformated test files"

This reverts commit 2352b41ba8a067eb7fb02258d322bba8ddc37809.
Fix three bugs with memory management in associative-multi.c
added tests