don't specify the underlying type
Merge pull request #185 from libgit2/fix-underlying-types

Use int as the underlying type for libgit2 enums
Bump to get libgit2/libgit2#1651
-force_load all libgit2 symbols so they're available to consumers
Use -all_load instead of -force_load on iOS #LibtoolLulz
Merge pull request #189 from libgit2/force-libgit2-symbols

-force_load all libgit2 symbols so they're available to consumers
more bumps
Merge branch 'master' into update-xcode