discussion for v2.0.0 release

#321 #300 #285 #267 #254 #227 #237 #268

I thinks these issues will be solved in `v2.0.0`. The released day will in the 2016/03/13 or 03/14.

The main patch is
1. fixing the column unalign problem in different browser or in tabs(`react-bootstrap`)
2. fixing a wrong rendering width on column in some case
3. fixing the wrong height on table

btw, for the unalign column in tabs, please check this [example](https://github.com/AllenFang/react-bootstrap-table/tree/master/examples/js/others/table-in-tabs.js). This example is a workaround solution, because I cant actually got the width of column which in hidden tabs(I found a lots of solutions, but did not worked). In addition, if tab do not render hidden tab, will solve this issues, check this [thread](https://github.com/react-bootstrap/react-bootstrap/issues/129)

if you have any issues or feedback **_is related with these topic**_, please tell me in this thread.
Sorry for a long time to wait this patch.

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when upgrade, remember to import(use) newest css file, dont reference legacy one