Release 0.0.3-alpha:

* Added TimePeriod structure in a separate PCL library
* Updated collections, optimized SortedMap and SortedHashMap and added benchmarks to test their performance
* NuGet packages could be already used for collections specifically designed for streaming time series. Benchmarks in the commit comment show differences in speed and memory.

TODO
* Why SHM reads are so much slower? Inner bucket caching suggests that reads should be faster. Investigate.
* Series with runtime implementation choice, benchmark overhead of wrapping maps inside series;
* Basic operations on series, e.g. map, join, etc.
* Bucket DU and load/save inner maps

MEDIUM
* TimePeriod correctness tests
* SHM inner maps to synchronized and outer map lock only when outer is being modified

LOW
* TimePeriod direct parsing from string

Test Name:	Run all
Test Outcome:	Passed
Result StandardOutput:	VECTORS
FSXVector insert, #1000000, ops: 1564945, mem/item: 34
FSXVector read, #1000000, ops: 10416666, mem/item: -34
----------------
SCGList insert, #1000000, ops: 14705882, mem/item: 8
SCGList read, #1000000, ops: 23809523, mem/item: 0
SCGList insert first, #10000, ops: 370370, mem/item: 7
SCGList insert first, #100000, ops: 31456, mem/item: 8
The bigger the list, the more data is copied
----------------
DEQUE
FSXDeque Conj, #1000000, ops: 3086419, mem/item: 31
FSXDeque Uncons, #1000000, ops: 1724137, mem/item: -32
FSXDeque Cons, #1000000, ops: 2832861, mem/item: 31
FSXDeque Unconj, #1000000, ops: 1788908, mem/item: -32
----------------
DeedleDeque Add, #1000000, ops: 18181818, mem/item: 8
DeedleDeque RemoveFirst, #1000000, ops: 24390243, mem/item: 0
----------------
MAPS
DeedleSeries insert, #10000, ops: 1464, mem/item: 15
DeedleSeries read, #10000, ops: 357142, mem/item: -16
----------------
FSXHashMap<int64,int64> insert, #1000000, ops: 154631, mem/item: 172
FSXHashMap<int64,int64> read, #1000000, ops: 1754385, mem/item: -171
----------------
IntMap64<int64> insert, #1000000, ops: 1063829, mem/item: 79
IntMap64<int64> read, #1000000, ops: 4048582, mem/item: -80
----------------
MapTree Add, #1000000, ops: 497017, mem/item: 43
MapTree Read, #1000000, ops: 3412969, mem/item: 0
MapTree Add Reverse, #1000000, ops: 504795, mem/item: 43
MapTree Read Reverse, #1000000, ops: 3154574, mem/item: -44
----------------
SCGSortedList Add, #1000000, ops: 6369426, mem/item: 16
SCGSortedList Read, #1000000, ops: 6060606, mem/item: 0
SCGSortedList Iterate, #1000000, ops: 58823529, mem/item: 0
SCGSortedList Add Reverse, #100000, ops: 16611, mem/item: 20
SCGSortedList Read Reverse, #100000, ops: 5882352, mem/item: -20
----------------
SCISortedMap Add, #1000000, ops: 471698, mem/item: 55
SCISortedMap Read, #1000000, ops: 4524886, mem/item: 0
SCISortedMap Add Reverse, #100000, ops: 602409, mem/item: 55
SCISortedMap Read Reverse, #100000, ops: 5000000, mem/item: -56
----------------
SortedList Add, #1000000, ops: 6993006, mem/item: 16
SortedList Read, #1000000, ops: 6369426, mem/item: 0
SortedList Iterate, #1000000, ops: 66666666, mem/item: 0
SortedList Add Reverse, #100000, ops: 16966, mem/item: 20
SortedList Read Reverse, #100000, ops: 6666666, mem/item: -21
----------------
SortedMap Add, #1000000, ops: 14492753, mem/item: 16
SortedMap Add, #1000000, ops: 14285714, mem/item: 16
SortedMap Add, #1000000, ops: 14285714, mem/item: 16
SortedMap Add, #1000000, ops: 14084507, mem/item: 16
SortedMap Add, #1000000, ops: 14084507, mem/item: 16
SortedMap Read, #1000000, ops: 5376344, mem/item: 0
SortedMap Read, #1000000, ops: 5586592, mem/item: 0
SortedMap Read, #1000000, ops: 5555555, mem/item: 0
SortedMap Read, #1000000, ops: 5586592, mem/item: 0
SortedMap Read, #1000000, ops: 5586592, mem/item: 0
SortedMap Iterate, #1000000, ops: 33333333, mem/item: 0
SortedMap Iterate, #1000000, ops: 45454545, mem/item: 0
SortedMap Iterate, #1000000, ops: 43478260, mem/item: 0
SortedMap Iterate, #1000000, ops: 43478260, mem/item: 0
SortedMap Iterate, #1000000, ops: 43478260, mem/item: 0
SortedMap Add Reverse, #100000, ops: 16914, mem/item: 20
SortedMap Read Reverse, #100000, ops: 5555555, mem/item: -20
----------------
SHM<1024> Add, #1000000, ops: 6711409, mem/item: 10
SHM Read, #1000000, ops: 5050505, mem/item: 0
SHM Iterate, #1000000, ops: 12500000, mem/item: 0
SHM<1024> Add Reverse, #100000, ops: 1754385, mem/item: 10
SHM Read Reverse, #100000, ops: 4761904, mem/item: -10
SHM Time Period Add, #1000000, ops: 3831417, mem/item: 11
SHM Time Period Read, #1000000, ops: 2785515, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 14285714, mem/item: -11
SHM Time Period Add, #1000000, ops: 4184100, mem/item: 11
SHM Time Period Read, #1000000, ops: 2873563, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 15151515, mem/item: -11
SHM Time Period Add, #1000000, ops: 3921568, mem/item: 11
SHM Time Period Read, #1000000, ops: 2923976, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 18867924, mem/item: -11
SHM Time Period Add, #1000000, ops: 4065040, mem/item: 11
SHM Time Period Read, #1000000, ops: 2824858, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 17543859, mem/item: -11
SHM Time Period Add, #1000000, ops: 4255319, mem/item: 11
SHM Time Period Read, #1000000, ops: 2873563, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 16393442, mem/item: -11
SHM Time Period Add, #1000000, ops: 4132231, mem/item: 11
SHM Time Period Read, #1000000, ops: 2857142, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 18518518, mem/item: -11
SHM Time Period Add, #1000000, ops: 4115226, mem/item: 11
SHM Time Period Read, #1000000, ops: 3021148, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 18518518, mem/item: -11
SHM Time Period Add, #1000000, ops: 4273504, mem/item: 11
SHM Time Period Read, #1000000, ops: 2915451, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 19230769, mem/item: -11
SHM Time Period Add, #1000000, ops: 4184100, mem/item: 11
SHM Time Period Read, #1000000, ops: 3030303, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 19230769, mem/item: -11
SHM Time Period Add, #1000000, ops: 4065040, mem/item: 11
SHM Time Period Read, #1000000, ops: 2949852, mem/item: 0
SHM Time Period Iterate, #1000000, ops: 18181818, mem/item: -11
----------------