add an index_remove_bypath that removes conflicts, renamed add_from_workdir to match
pack: evict objects from the cache in groups of eight

This drops the cache eviction below libcrypto and zlib in the perf
output. The number has been chosen empirically.
pack: evict all of the pages at once

Somewhat surprisingly, this can increase the speed considerably, as we
don't bother trying to decide what to evict, and the most used entries
are quickly back into the cache.
Don't segfault if transport doesn't support push.

Instead, set an more informative error message.
cache should contain on-disk (filtered) file size
Add skipping of unknown commit headers

This moves the check for the "encoding" header into a loop which
is just scanning for non-required headers at the end of a commit
header.  That loop will skip unrecognized lines (including header
continuation lines) until a terminating completely blank line is
found, and only then does it move to reading the commit message.
Test that pushs properly fail for transports that don't provide a push implementation.
Merge pull request #1254 from ethomson/index_filtered_size

cache should contain on-disk (filtered) file size
Merge pull request #1255 from arrbee/fix-signed-commit-header-parsing

Add skipping of unknown commit headers
Merge pull request #1247 from sba1/dont-segfault-if-transport-doesnt-support-push

Don't segfault if transport doesn't support push.
Merge pull request #1244 from carlosmn/pack-evict

A comparison of eviction algorithms for the delta base cache
Move all non-ascii test data to raw hex

This takes all of the characters in core::env and makes them use
hex sequences instead of keeping tricky character data inline in
the test.
add a git config, don't run crlf tests on non-win32
Merge pull request #1257 from ethomson/crlf_test_fix

add a git config, don't run crlf tests on non-win32
Merge pull request #1256 from arrbee/asciify-test-data

Move all non-ascii test data to raw hex
Merge pull request #1239 from ethomson/index_remove

add an index_remove_bypath that removes conflicts
Fix linking error caused by ddcb28a41f3774e26fc6ae0a7174a5565e4749ce.
Merge pull request #1258 from zcbenz/fix_index_remove_test

Fix linking error caused by ddcb28a41f3774e26fc6ae0a7174a5565e4749ce.
Fix really bad error handling in git_smart__negotiate_fetch
Merge pull request #1260 from phkelley/development

Fix really bad error handling in git_smart__negotiate_fetch