remove hard dependency on geos library.

The typical usage of parsing osm files does not require handling of multipolygons (and area() call is no used) . However, handler.hpp  includes area.hpp file which in turn includes geos library. And that one defines int64 types in global scope which conflicts with other libraries i am using.
Merge pull request #65 from romange/patch-1

Remove hard dependency on geos library.
Change ById storage to return obj and not obj reference, because the reference could point to a temporary.
define BOOST_TEST_DYN_LINK in CXXFLAGS rather than each test
Merge pull request #66 from springmeyer/single-dyn-link

define BOOST_TEST_DYN_LINK in CXXFLAGS rather than each test
Change magic that finds libraries to compile with so it works with clang, too
Add -Wno-long-long to test compiler cmd line
Fix a few bugs found thru warnings on newer compilers
Changed some C style casts into C++ style casts
Fixed the fix for %ld vs %lld formatting
Make Makefiles/run_test more flexible. This should help with compiling under different systems where extra/different command line parameters are needed.
Add include dir to path to help compiling on suse
Some changes for Windows support.

These are some small mixed changes taken from the code by alex85k at
https://github.com/alex85k/osmium . This gets rids of some of the
smaller issues. There are still lots of other issues to address for
the Windows version.
Make osmium_time work on Windows.

osmium_time outputs wallclock time and user/system time, the latter is not
available on Windows. With this change only wallclock time is reported which is
the most important anyway. On unix systems you can set
REPORT_USER_AND_SYSTEM_TIME when compiling and it will also report the other
values.
Fix haversine formula
Prefer prefix ++ to postfix ++
Move string-to-int conversion into types.hpp

This way they are all in one place and it is the same place where the necessary
types are defined. This also adds a definition needed for compiling on Windows.
Remove references to sqlite lib/Update README.

The sqlite lib wasn't used any more.
Add necessary include
Fix reading of .osc.gz, use 'zcat' command.